Muhammad II of Khwarazm
'Alā' al-Din Muhammad (Persian: علاءالدین محمد خوارزمشاه; full name: Ala ad-Dunya wa ad-Din Abul-Fath Muhammad Sanjar ibn Tekish) was the Shah of the Khwarazmian Empire from 1200 to 1220. His ancestor was Anushtegin Gharchai, a Turkic Ghulam who eventually became a viceroy of a small province named Khwarizm. He is perhaps best known for inciting the Mongol conquest of the Khwarazmian Empire, which resulted in the utter destruction of his empire. Reign After his father Tekish died, Muhammad succeeded him. Right after his accession, however, his domains were invaded by the two Ghurid brothers Ghiyath al-Din Ghori and Mu'izz al-Din. Within weeks, the two brothers had moved their armies westwards into Khorasan. Once they had captured Nishapur, Mu'izz al-Din was sent on an expedition towards Ray, but he let his troops get out of control and got little further than Gurgan, earning criticism from Ghiyath which led to the only reported quarrel between the brothers. Ghiyath died at Herat in 1203 after months of illness. Muhammad II used this opportunity to invade the domains of the Ghurid Empire, and besieged Herat. Mu'izz, however, managed to repel him from Herat and then pursued him to Khwarezm, besieging Gurganj, his capital. Muhammad