Moms-Sultan became Khan of the Kazakh Khanate after the death of his father - Kasim Khan.
The harsh winter in 1522 and in this cold winter of seventy-six year-old Kasim Khan died.
But the board Mamash Khan was short-lived feud sultans Juchids at the time weakened the Kazakh Khanate. Soon, in 1524, Mamash Khan died in the internecine struggle. "Died of asphyxiation due to a variety of movement and gravity of military weapons" in 928 AH, that is, in the period between December 1, 1521 and November 19, 1522