1 3 2 6 – 1 3 3 4 ) ▁converted ▁to ▁Islam ▁and ▁ra ided ▁the ▁Del hi ▁Sultan ate , ▁reaching ▁as ▁far ▁as ▁Del hi . ▁T arm ash ir in ▁was ▁brought ▁down ▁by ▁an ▁anti - Mus lim ▁re bell ion ▁of ▁the ▁eastern ▁tribes . ▁A ▁son ▁of ▁Du wa , ▁Ch ang sh i , ▁was ▁ent hr oned ▁in ▁ 1 3 3 5 . ▁One ▁of ▁his ▁sons ▁was ▁bapt ized . ▁Pope ▁Bened ict ▁XII ▁appointed ▁the ▁Francis can ▁Richard ▁of ▁Burg und y ▁to ▁Al mal ik ▁in ▁ 1 3 3 9 ▁but ▁he ▁was ▁killed ▁by ▁Muslim s ▁in ▁the ▁I li ▁region . ▁Giovanni ▁de ' ▁Mar ign ol li , ▁a ▁pap al ▁leg ate , ▁arrived ▁in ▁the ▁I li ▁valley ▁the ▁following ▁year ▁on ▁his ▁way ▁to ▁the ▁Y uan ▁dynast y . ▁He ▁built ▁a ▁church ▁and ▁bapt ized ▁some ▁people ▁during ▁his ▁stay ▁but ▁the ▁presence ▁of ▁Christian ity ▁did ▁not ▁last ▁much ▁longer ▁after ▁his ▁departure . ▁ ▁Trans ition ▁to ▁M og h ul istan ▁( 1 3 3 8 – 1 3 6 3 ) ▁The ▁k han ate ▁became ▁increasing ly ▁un stable ▁in ▁the ▁following ▁years ▁and ▁split ▁in ▁two ▁during ▁the ▁ 1 4 4 0 s . ▁Trans ox ania ▁was ▁ruled ▁by ▁Q az an ▁Khan ▁ibn ▁Y as aur . ▁In ▁ 1 3 4 6 ▁a ▁trib al ▁chief , ▁Am ir ▁Q az