The person who changed name of this street from Kralja Petra I to Miloša Kneževića, stated that they did personal survey. I'm going to leave name of the street as it is right now and close this note, unless you have proof that this is wrong name (have picture of street name sign). Also the google source that you have stated is not valid, as Google source can't be used to make changes on OSM.

If you have more information or proof about this specific street name, please reactivate this note and make a comment. Thanks.