The defeat of Husayn made Timur the main power in Mawarannahr and western Chagatai, but the laws laid down by Genghis Khan prevented him from become Khan in his own right. Instead a 'puppet' khan descended from Ögedei, Suurgatmish, was installed. Timur increased his own legitimacy by marrying Husayn's widow Saray Mulk, a princess descended from Genghis Khan.