9 9 . ▁His ▁younger ▁brother ▁John ▁succeeded ▁in ▁England , ▁and ▁fought ▁a ▁successful ▁war ▁against ▁Richard ' s ▁nep hew ▁Arthur ▁for ▁control ▁of ▁the ▁French ▁possession . ▁John ' s ▁behaviour ▁led ▁to ▁re bell ions ▁by ▁the ▁Norman ▁and ▁An ge vin ▁bar ons ▁that ▁broke ▁his ▁control ▁of ▁the ▁contin ental ▁poss essions . ▁His ▁attempt ▁to ▁re take ▁Norm andy ▁and ▁An jou ▁was ▁defeated ▁at ▁the ▁Battle ▁of ▁B ouv ines . ▁This ▁weak ened ▁his ▁position ▁in ▁England , ▁eventually ▁resulting ▁in ▁the ▁treat y ▁called ▁Mag na ▁Cart a , ▁which ▁limited ▁royal ▁power , ▁and ▁the ▁First ▁Bar ons ' ▁War . ▁His ▁death ▁in ▁ 1 2 1 6 ▁is ▁considered ▁by ▁some ▁histor ians ▁to ▁mark ▁the ▁end ▁of ▁the ▁An ge vin ▁period ▁and ▁the ▁beginning ▁of ▁the ▁Plant agen et ▁dynast y . ▁ ▁The ▁Norm ans ▁adopted ▁many ▁Ang lo - S ax on ▁government al ▁institutions , ▁but ▁the ▁fe ud al ▁system ▁concentr ated ▁more ▁power ▁in ▁the ▁hands ▁of ▁the ▁king ▁and ▁a ▁small ▁el ite . ▁The ▁rights ▁and ▁roles ▁of ▁women ▁became ▁more ▁sharp ly ▁defined . ▁No ble w omen ▁remained ▁significant ▁cultural ▁and ▁religious ▁pat rons ▁and ▁played ▁an ▁important ▁part ▁in ▁political ▁and ▁military ▁events . ▁During ▁the ▁tw elf th ▁century ▁divisions ▁between ▁conquer ors ▁and ▁the ▁English ▁began ▁to ▁dissol ve ▁and ▁they ▁began ▁to ▁consider ▁themselves ▁superior ▁to ▁their ▁C elt ic ▁neighb ours . ▁The ▁con