▁former ▁wife ▁of ▁her ▁husband ▁Bab ur , ▁and ▁two ▁more ▁became ▁her ▁sister s - in - law . ▁▁ ▁She ▁was ▁the ▁step - d augh ter ▁of ▁Mi hr ▁N ig ar ▁Khan um , ▁sister ▁of ▁Bab ur ' s ▁mother ▁Q ut l ugh ▁N ig ar ▁Khan um . ▁She ▁was ▁also ▁the ▁half ▁sister ▁of ▁A ish a ▁Sultan ▁Beg um , ▁first ▁wife ▁of ▁Bab ur , ▁whom ▁she ▁later ▁divor ced , ▁under ▁the ▁influence ▁of ▁their ▁el dest ▁sister ▁Rab ia ▁Sultan ▁Beg um . ▁ ▁Her ▁father ▁was ▁the ▁el dest ▁son ▁and ▁successor ▁of ▁Ab u ▁Sa ' id ▁Mir za , ▁the ▁Emperor ▁of ▁the ▁Tim ur id ▁Empire . ▁Mas uma ' s ▁pat ernal ▁un cles ▁included ▁U mar ▁She ikh ▁Mir za , ▁the ▁r uler ▁of ▁Fer gh ana ▁Valley , ▁who ▁later ▁became ▁her ▁father - in - law ▁as ▁well ▁while ▁her ▁first ▁c ous ins ▁included ▁her ▁future ▁husband , ▁Bab ur , ▁and ▁his ▁elder ▁sister , ▁Kh anz ada ▁Beg um . ▁ ▁Mar riage ▁Following ▁Bab ur ' s ▁loss ▁of ▁Sam ark and ▁and ▁And ij an , ▁Hab iba ▁Sultan ▁Beg um , ▁Mas uma ' a ▁mother , ▁brought ▁Mas uma ▁to ▁Her at . ▁One ▁day ▁when ▁Bab ur ▁was ▁visit ing ▁an ▁elder ▁relative ▁on ▁his ▁expedition ▁to ▁Kh os ran , ▁Mas uma ▁came ▁there ▁with ▁her ▁mother . ▁Mas uma ▁fell ▁in ▁love