▁Khan . ▁ ▁Background ▁and ▁family ▁ ▁Y un us ▁Ali ▁was ▁the ▁el dest ▁son ▁of ▁U w ais ▁Khan ▁( or ▁V ais ▁Khan ) ▁of ▁M og h ul istan . ▁When ▁V ais ▁Khan ▁was ▁killed ▁in ▁ 1 4 2 8 ▁AD , ▁the ▁M og h uls ▁were ▁split ▁as ▁to ▁who ▁should ▁succeed ▁him . ▁Although ▁Y un us ▁Khan ▁was ▁his ▁el dest ▁son , ▁the ▁majority ▁fav ored ▁Y un us ' ▁younger ▁brother , ▁Es en ▁Bu qa . ▁As ▁a ▁result , ▁Y un us ▁and ▁his ▁supp or ters ▁fled ▁to ▁Ul ugh ▁Beg , ▁the ▁Tim ur id ▁r uler ▁of ▁Trans ox iana , ▁who ▁however ▁imprison ed ▁the ▁group . ▁Ul ugh ▁Beg ' s ▁father , ▁Shah ▁R uk h , ▁took ▁charge ▁of ▁the ▁young ▁Y un us ▁and ▁ ▁treated ▁him ▁well . ▁He ▁sent ▁Y un us ▁to ▁Y az d ▁in ▁Iran ▁to ▁study ▁under ▁Ma ul ana ▁Sh ar af ▁ad - D in ▁Ali ▁Y az di . ▁Y un us ▁Khan ▁spent ▁several ▁years ▁studying ▁under ▁the ▁Ma ul ana ▁in ▁Y az d , ▁in ▁the ▁process ▁becoming ▁one ▁of ▁the ▁most ▁educated ▁M og h uls ▁of ▁his ▁time . ▁After ▁the ▁Ma ul ana ▁died , ▁Y un us ▁w ander ed ▁around ▁for ▁some ▁time ▁before ▁sett ling ▁down ▁in ▁the ▁city ▁of ▁Sh ira z ▁in ▁Iran . ▁ ▁The ▁following ▁observation ▁was ▁made ▁by