sel ▁conquer ed ▁some ▁territory ▁in ▁Gal atia ▁and ▁declared ▁it ▁an ▁independent ▁state ▁in ▁ 1 0 7 3 , ▁with ▁himself ▁as ▁prince , ▁following ▁the ▁example ▁set ▁by ▁his ▁fellow ▁Norm ans ▁in ▁the ▁Me zz og ior no . ▁His ▁capital ▁was ▁An k ara , ▁now ▁the ▁capital ▁of ▁Turkey . ▁He ▁defeated ▁the ▁Ca esar ▁John ▁Duc as ▁and ▁s ack ed ▁Ch rys opol is , ▁near ▁Constantin ople . ▁He ▁even ▁supported ▁a ▁us ur per ▁candidate , ▁but ▁by ▁formally ▁c eding ▁lands ▁that ▁the ▁Sel j uk ▁Tur ks ▁had ▁actually ▁conquer ed , ▁the ▁em peror ▁Michael ▁VII ▁persu aded ▁the ▁Sel j uk ▁war l ord ▁T ut ush ▁I ▁to ▁remove ▁R ous sel . ▁However ▁both ▁Duc as ▁and ▁R ous sel ▁were ▁defeated ▁and ▁captured ▁by ▁Turkish ▁forces , ▁fort un ately ▁for ▁R ous sel ▁his ▁wife ▁was ▁able ▁to ▁pay ▁the ▁r ans om ▁demanded ▁by ▁the ▁Tur ks ▁allowing ▁R ous sel ▁to ▁return ▁to ▁Am ase a , ▁where ▁the ▁population ▁so ▁loved ▁him ▁that ▁he ▁made ▁himself ▁und is put ed ▁governor . ▁He ▁was ▁given ▁up ▁by ▁the ▁people ▁through ▁a ▁p loy ▁of ▁Alex ius ▁Com nen us ▁( 1 0 7 4 ), ▁then ▁a ▁general , ▁later ▁an ▁em peror . ▁ ▁In ▁ 1 0 7 7 , ▁he ▁was ▁released ▁( for ▁a ▁r ans om ) ▁from ▁his ▁Constantin opol itan ▁imprison ment ▁to ▁lead ▁a