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            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center">
            <b><font size="4">SECURITIES AND EXCHANGE COMMISSION</font></b></p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center">
            <b><font size="2">Washington, D.C. 20549</font></b></p>

            <p style="MARGIN-TOP: 12pt; MARGIN-BOTTOM: 18pt; TEXT-ALIGN: center">
            <font size="2">__________________</font></p>

            <p style="MARGIN-TOP: 12pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center">
            <b><font size="4">FORM 8-K</font></b></p>

            <p style="MARGIN-TOP: 12pt; MARGIN-BOTTOM: 18pt; TEXT-ALIGN: center">
            <b><font size="2">CURRENT REPORT</font></b></p>

            <p style="MARGIN-TOP: 12pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center">
            <b><font size="2">Pursuant to Section 13 or 15(d) of the</font></b></p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center">
            <b><font size="2">Securities Exchange Act of 1934</font></b></p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center">&nbsp;</p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><font size="2">Date
            of Report:</font> <b><font size="2">February 5, 2008</font></b></p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 6pt; TEXT-ALIGN: center"><font size="2">(Date
            of earliest event reported)</font></p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center">&nbsp;</p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center">
            <b><font size="4">PRINCIPAL FINANCIAL GROUP, INC.</font></b></p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center">
            <font size="2">(Exact name of registrant as specified in its charter)</font></p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center">&nbsp;</p>

            <div align="left">
                <table cellspacing="0" cellpadding="0" width="600" align="center" border="0">
                    <tr>
                        <td style="PADDING-RIGHT: 0.07in; PADDING-LEFT: 0.07in; PADDING-BOTTOM: 0in; PADDING-TOP: 0in" valign="top" width="217">
                            <p style="MARGIN-TOP: 0pt; FONT-WEIGHT: bold; FONT-SIZE: 18pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0in; TEXT-INDENT: 0px; FONT-FAMILY: 'TIMES'" align="center">
                            <b><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'TIMES NEW ROMAN'">Delaware</font></b></p>
                        </td>

                        <td style="PADDING-RIGHT: 0.07in; PADDING-LEFT: 0.07in; PADDING-BOTTOM: 0in; PADDING-TOP: 0in" valign="top" width="217">
                            <p style="MARGIN-TOP: 0pt; FONT-WEIGHT: bold; FONT-SIZE: 18pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0in; TEXT-INDENT: 0px; FONT-FAMILY: 'TIMES'" align="center">
                            <b><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'TIMES NEW ROMAN'">1-16725</font></b></p>
                        </td>

                        <td style="PADDING-RIGHT: 0.07in; PADDING-LEFT: 0.07in; PADDING-BOTTOM: 0in; PADDING-TOP: 0in" valign="top" width="217">
                            <p style="MARGIN-TOP: 0pt; FONT-WEIGHT: bold; FONT-SIZE: 18pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0in; TEXT-INDENT: 0px; FONT-FAMILY: 'TIMES'" align="center">
                            <b><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'TIMES NEW ROMAN'">42-1520346</font></b></p>
                        </td>
                    </tr>

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                            <b><font style="FONT-WEIGHT: normal; FONT-SIZE: 10pt; FONT-FAMILY: 'TIMES NEW ROMAN'">
                            (State or other jurisdiction of incorporation)</font></b></p>
                        </td>

                        <td style="PADDING-RIGHT: 0.07in; PADDING-LEFT: 0.07in; PADDING-BOTTOM: 0in; PADDING-TOP: 0in" valign="top" width="217">
                            <p style="MARGIN-TOP: 0pt; FONT-WEIGHT: bold; FONT-SIZE: 18pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0in; TEXT-INDENT: 0px; FONT-FAMILY: 'TIMES'" align="center">
                            <b><font style="FONT-WEIGHT: normal; FONT-SIZE: 10pt; FONT-FAMILY: 'TIMES NEW ROMAN'">
                            (Commission file number)</font></b></p>
                        </td>

                        <td style="PADDING-RIGHT: 0.07in; PADDING-LEFT: 0.07in; PADDING-BOTTOM: 0in; PADDING-TOP: 0in" valign="top" width="217">
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                            <b><font style="FONT-WEIGHT: normal; FONT-SIZE: 10pt; FONT-FAMILY: 'TIMES NEW ROMAN'">
                            (I.R.S. Employer Identification Number)</font></b></p>
                        </td>
                    </tr>
                </table>
            </div>

            <div align="left">
                &nbsp;
            </div>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center">
            <b><font size="2">711 High Street, Des Moines, Iowa 50392</font></b></p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center">
            <font size="2">(Address of principal executive offices)</font></p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center">&nbsp;</p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center">
            <b><font size="2">(515) 247-5111</font></b></p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center">
            <font size="2">(Registrant&rsquo;s telephone number, including area code)</font></p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center">&nbsp;</p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Check
            the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy
            the filing obligation of the registrant under any of the following
            provisions:</font></p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

            <div align="left">
                <p style="MARGIN-TOP: 0pt; FONT-WEIGHT: bold; FONT-SIZE: 10pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0in; TEXT-INDENT: 0px; FONT-FAMILY: 'TIMES'" align="left">
                <b><font style="FONT-WEIGHT: normal; FONT-FAMILY: 'TIMES NEW ROMAN'">[
                ]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Written communications pursuant to Rule 425 under
                the Securities Act (17 CFR 230.425)<br>
                [ ]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Soliciting material pursuant to Rule 14a-12 under
                the Exchange Act (17 CFR 240.14a-12)<br>
                [ ]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pre-commencement communications pursuant to Rule
                14d-2(b) under the Exchange Act (17 CFR&nbsp;<br>
                 &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;240.14d-2(b))<br>
                [ ]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pre-commencement communications pursuant to Rule
                13e-4(c) under the Exchange Act (17 CFR&nbsp;<br>
                 &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;240.13e-4(c))</font></b></p>

                <p></p>
            </div>

            <div align="left">
                &nbsp;
            </div>

            <p style="MARGIN-TOP: 12pt; MARGIN-BOTTOM: 18pt; TEXT-ALIGN: center">
            <font size="2">__________________</font></p>
            <!-- EEDocs PBStart-->

            <p style="PAGE-BREAK-BEFORE: always"></p>
            <!-- EEDocs PBEnd-->

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><b><font size="2">Item
            7.01</font></b><font size="1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font>
            <b><font size="2">Regulation FD Disclosure</font></b></p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-INDENT: 0.52in; TEXT-ALIGN: justify">
            <font size="2">The following information is provided in response to inquiries by
            investors about exposure to subprime mortgage lending. The following is an overview of
            Principal Financial Group, Inc.&rsquo;s (&ldquo;PFG&rdquo;) investment in residential
            mortgages, mortgage backed securities (&ldquo;MBS&rdquo;) (including collateralized
            mortgage obligations (&ldquo;CMO&rdquo;) and commercial mortgage backed securities
            (&ldquo;CMBS&rdquo;)), and asset backed securities (&ldquo;ABS&rdquo;) (including
            collateralized debt obligations (&ldquo;CDO&rdquo;)). All values are as of December 31,
            2007.</font></p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: justify">&nbsp;</p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-INDENT: 0.52in; TEXT-ALIGN: justify">
            <u><font size="2">Residential Mortgages.</font></u> <font size="2">PFG owned
            approximately $1.9 billion of whole loan residential mortgages. This $1.9 billion was
            comprised of $1.3 billion of first and second lien mortgages to prime borrowers at
            Principal Bank. PFG&rsquo;s subsidiary, Principal International de Chile S.A., owned
            approximately $550 million of first mortgages to prime Chilean borrowers.</font></p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: justify">&nbsp;</p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-INDENT: 0.51in; TEXT-ALIGN: justify">
            <u><font size="2">MBS.</font></u> <font size="2">PFG owned approximately $7.1 billion
            of MBS. This $7.1 billion was comprised of (i) $1.5 billion of AAA rated mortgage
            pass-through certificates in which the underlying mortgages were conforming loans
            backed by U.S. government agencies or instrumentalities; (ii) $937 million of CMO which
            were backed by 92% prime mortgages and 8% Alt A mortgages (94% rated AAA and 6% rated
            AA; 78% issued in 2005 or before, 16% in 2006 and 6% in 2007); and (iii) $4.7 billion
            of CMBS, 98% of which were investment grade, with 73% rated A- or better.</font></p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: justify">&nbsp;</p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-INDENT: 0.52in; TEXT-ALIGN: justify">
            <u><font size="2">ABS.</font></u> <font size="2">PFG owned approximately $2.6 billion
            of ABS. This included (i) $557 million of subprime first lien mortgages, 94% of which
            were rated AA or better and 87% of which were issued in 2005 or before; (ii) $56
            million of CDO backed by subprime mortgages (42% rated AA, and 22% rated A or A-; 36%
            issued in 2005 or before, and 64% in 2006 and 2007); and (iii) $966 million of CDO
            backed by cash or synthetic corporate debt (72%) or CMBS (28%) (100% of the CDO
            corporate securities were investment grade and 89% of the CMBS CDO securities were
            investment grade). The remaining $1.0 billion of ABS portfolio was backed by credit
            card, auto or consumer loan receivables.</font></p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: justify">&nbsp;</p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-INDENT: 0.52in; TEXT-ALIGN: justify">
            <font size="2">To summarize, PFG&rsquo;s total exposure to subprime residential
            mortgages at December 31, 2007 was $613 million, or 1% of invested assets. Almost all
            such exposure was in highly rated traunches of asset backed securities, most of which
            were issued in 2005 or earlier.</font></p>

            <p style="MARGIN-TOP: 12pt; MARGIN-BOTTOM: 3pt; TEXT-ALIGN: center">
            <font size="2">SIGNATURE</font></p>

            <p style="MARGIN-TOP: 12pt; MARGIN-BOTTOM: 12pt; TEXT-ALIGN: justify">
            <font size="2">Pursuant to the requirements of the Securities Exchange Act of 1934, the
            registrant has duly caused this report to be signed on its behalf by the undersigned
            thereunto duly authorized.</font></p>

            <div align="left">
                <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="579" border="0">
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                        <td valign="top" nowrap width="288">
                            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">
                            &nbsp;</p>
                        </td>

                        <td valign="top" nowrap width="291">
                            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">
                            <font size="2">PRINCIPAL FINANCIAL GROUP, INC.</font></p>
                        </td>
                    </tr>
                </table>
            </div>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

            <div align="left">
                <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="473" border="0">
                    <tr>
                        <td valign="top" nowrap width="288">
                            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">
                            &nbsp;</p>
                        </td>

                        <td valign="top" nowrap width="48">
                            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">
                            <font size="2">By:</font></p>
                        </td>

                        <td valign="top" nowrap width="137">
                            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">
                            <u><font size="2">/s/ Thomas J. Graf</font></u></p>
                        </td>
                    </tr>
                </table>
            </div>

            <div align="left">
                <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="453" border="0">
                    <tr>
                        <td valign="top" nowrap width="288">
                            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">
                            &nbsp;</p>
                        </td>

                        <td valign="top" nowrap width="48">
                            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">
                            <font size="2">Name:</font></p>
                        </td>

                        <td valign="top" nowrap width="117">
                            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">
                            <font size="2">Thomas J. Graf</font></p>
                        </td>
                    </tr>
                </table>
            </div>

            <div align="left">
                <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="100%" border="0">
                    <tr>
                        <td valign="top" width="288">
                            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">
                            &nbsp;</p>
                        </td>

                        <td valign="top" width="48">
                            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">
                            <font size="2">Title:</font></p>
                        </td>

                        <td valign="top">
                            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">
                            <font size="2">Senior Vice President &ndash; Investor
                            Relations</font></p>
                        </td>
                    </tr>
                </table>
            </div>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

            <div align="left">
                <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="177" border="0">
                    <tr>
                        <td valign="top" nowrap width="48">
                            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">
                            <font size="2">Date:</font></p>
                        </td>

                        <td valign="top" nowrap width="129">
                            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">
                            <font size="2">February 5, 2008</font></p>
                        </td>
                    </tr>
                </table>
            </div>

            <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>
            <!-- EEDocs PBStart--><!-- EEDocs PBEnd-->

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{"company-data": {"conformed-name": "PRINCIPAL FINANCIAL GROUP INC", "cik": "0001126328", "assigned-sic": "6321", "irs-number": "421520346", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-16725", "film-number": "08574937"}, "business-address": {"street1": "711 HIGH STREET", "city": "DES MOINES", "state": "IA", "zip": "50392-0300", "phone": "5152475111"}, "mail-address": {"street1": "711 HIGH STREET", "city": "DES MOINES", "state": "IA", "zip": "50392-0300"}}
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
__________________
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date
            of Report:
February 5, 2008
(Date
            of earliest event reported)
PRINCIPAL FINANCIAL GROUP, INC.
(Exact name of registrant as specified in its charter)
Delaware
1-16725
42-1520346
(State or other jurisdiction of incorporation)
(Commission file number)
(I.R.S. Employer Identification Number)
711 High Street, Des Moines, Iowa 50392
(Address of principal executive offices)
(515) 247-5111
(Registrant's telephone number, including area code)
Check
            the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy
            the filing obligation of the registrant under any of the following
            provisions:
[
                ]     Written communications pursuant to Rule 425 under
                the Securities Act (17 CFR 230.425)
[ ]     Soliciting material pursuant to Rule 14a-12 under
                the Exchange Act (17 CFR 240.14a-12)
[ ]     Pre-commencement communications pursuant to Rule
                14d-2(b) under the Exchange Act (17 CFR
240.14d-2(b))
[ ]     Pre-commencement communications pursuant to Rule
                13e-4(c) under the Exchange Act (17 CFR
240.13e-4(c))
__________________
Item
            7.01
Regulation FD Disclosure
The following information is provided in response to inquiries by
            investors about exposure to subprime mortgage lending. The following is an overview of
            Principal Financial Group, Inc.'s ("PFG") investment in residential
            mortgages, mortgage backed securities ("MBS") (including collateralized
            mortgage obligations ("CMO") and commercial mortgage backed securities
            ("CMBS")), and asset backed securities ("ABS") (including
            collateralized debt obligations ("CDO")). All values are as of December 31,
            2007.
Residential Mortgages.
PFG owned
            approximately $1.9 billion of whole loan residential mortgages. This $1.9 billion was
            comprised of $1.3 billion of first and second lien mortgages to prime borrowers at
            Principal Bank. PFG's subsidiary, Principal International de Chile S.A., owned
            approximately $550 million of first mortgages to prime Chilean borrowers.
MBS.
PFG owned approximately $7.1 billion
            of MBS. This $7.1 billion was comprised of (i) $1.5 billion of AAA rated mortgage
            pass-through certificates in which the underlying mortgages were conforming loans
            backed by U.S. government agencies or instrumentalities; (ii) $937 million of CMO which
            were backed by 92% prime mortgages and 8% Alt A mortgages (94% rated AAA and 6% rated
            AA; 78% issued in 2005 or before, 16% in 2006 and 6% in 2007); and (iii) $4.7 billion
            of CMBS, 98% of which were investment grade, with 73% rated A- or better.
ABS.
PFG owned approximately $2.6 billion
            of ABS. This included (i) $557 million of subprime first lien mortgages, 94% of which
            were rated AA or better and 87% of which were issued in 2005 or before; (ii) $56
            million of CDO backed by subprime mortgages (42% rated AA, and 22% rated A or A-; 36%
            issued in 2005 or before, and 64% in 2006 and 2007); and (iii) $966 million of CDO
            backed by cash or synthetic corporate debt (72%) or CMBS (28%) (100% of the CDO
            corporate securities were investment grade and 89% of the CMBS CDO securities were
            investment grade). The remaining $1.0 billion of ABS portfolio was backed by credit
            card, auto or consumer loan receivables.
To summarize, PFG's total exposure to subprime residential
            mortgages at December 31, 2007 was $613 million, or 1% of invested assets. Almost all
            such exposure was in highly rated traunches of asset backed securities, most of which
            were issued in 2005 or earlier.
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the
            registrant has duly caused this report to be signed on its behalf by the undersigned
            thereunto duly authorized.
PRINCIPAL FINANCIAL GROUP, INC.
By:
/s/ Thomas J. Graf
Name:
Thomas J. Graf
Title:
Senior Vice President – Investor
                            Relations
Date:
February 5, 2008