. ▁ ▁This ▁basic ▁form ▁of ▁administration ▁continued ▁throughout ▁the ▁Middle ▁Kingdom , ▁though ▁there ▁is ▁some ▁evidence ▁for ▁a ▁major ▁reform ▁of ▁the ▁central ▁government ▁under ▁Sen us ret ▁III . ▁Records ▁from ▁his ▁reign ▁indicate ▁that ▁Upper ▁and ▁Lower ▁Egypt ▁were ▁divided ▁into ▁separate ▁w aret ▁and ▁govern ed ▁by ▁separate ▁administr ators . ▁Administr ative ▁documents ▁and ▁private ▁ste le ▁indicate ▁a ▁pro l ifer ation ▁of ▁new ▁b ureau cr atic ▁titles ▁around ▁this ▁time , ▁which ▁have ▁been ▁taken ▁as ▁evidence ▁of ▁a ▁larger ▁central ▁government . ▁Govern ance ▁of ▁the ▁royal ▁residence ▁was ▁moved ▁into ▁a ▁separate ▁division ▁of ▁government . ▁The ▁military ▁was ▁placed ▁under ▁the ▁control ▁of ▁a ▁chief ▁general . ▁However , ▁it ▁is ▁possible ▁that ▁these ▁titles ▁and ▁positions ▁were ▁much ▁older , ▁and ▁simply ▁were ▁not ▁recorded ▁on ▁fun er ary ▁ste le ▁due ▁to ▁religious ▁convent ions . ▁ ▁Provin cial ▁government ▁ ▁Dec ent ral ization ▁during ▁the ▁First ▁Inter mediate ▁Period ▁left ▁the ▁individual ▁Egypt ian ▁provinces , ▁or ▁Nom es , ▁under ▁the ▁control ▁of ▁powerful ▁families ▁who ▁held ▁the ▁her edit ary ▁title ▁of ▁Great ▁Chief ▁of ▁the ▁N ome , ▁or ▁Nom arch . ▁This ▁position ▁developed ▁during ▁the ▁Fif th ▁and ▁Six th ▁D ynast ies , ▁when ▁the ▁various ▁powers ▁of ▁Old ▁Kingdom ▁provincial ▁officials ▁began ▁to ▁be ▁exerc ised ▁by ▁a ▁single ▁individual . ▁At ▁roughly ▁this ▁time , ▁the ▁provincial ▁arist ocracy ▁began ▁building ▁elaborate ▁tomb s ▁for ▁themselves , ▁which ▁have