▁role ▁in ▁the ▁politics ▁of ▁the ▁Mong ol ▁Il k han ate . ▁ ▁Early ▁career ▁ ▁He ▁inherited ▁his ▁father ' s ▁administrative ▁job ▁in ▁K hor as an ▁and ▁was ▁listed ▁as ▁em irs ▁and ▁son - in - la ws ▁of ▁Ab a qa ▁in ▁medieval ▁chron ic lers ' ▁works . ▁He ▁supported ▁Arg h un ▁against ▁T ek ü der ▁in ▁ 1 2 8 4 ▁and ▁was ▁reward ed ▁by ▁being ▁at ab eg ▁of ▁his ▁ 1 3 ▁year ▁old ▁son ▁Gh az an ▁and ▁Prince ▁King sh ü ▁( son ▁of ▁J um gh ur ) ▁as ▁Gh az an ' s ▁sub ordinate ▁in ▁K hor as an ▁thanks ▁to ▁new ▁king maker ▁Bu qa . ▁He ▁hold ▁this ▁powerful ▁position ▁of ▁being ▁autonom ous ▁de - fact o ▁r uler ▁of ▁K hor as an ▁until ▁Arg h un ▁Khan ' s ▁arrest ▁of ▁Bu qa . ▁ ▁Reb ell ion ▁ ▁H ear ing ▁arrival ▁of ▁an ▁Il k han ate ▁army ▁towards ▁K hor as an , ▁N aw r ū z ▁led ▁a ▁revol t ▁against ▁Arg h un , ▁possibly ▁proc laim ing ▁H ul ach u ▁( son ▁of ▁H ul agu ) ▁and ▁King sh ü ▁( who ▁seems ▁to ▁have ▁died ▁or ▁executed ▁som etime ▁during ▁revol t ) ▁as ▁new ▁il k han , ▁captured ▁his ▁commander ▁T eg ine ▁Y arg uch i , ▁also ▁ban ishing ▁his ▁former ▁w ard ▁Gh az an