Ahmad Niyaltigin was the treasurer of a sultan who rose to power by seizing what from his younger twin?
Ahmad Niyaltigin Ahmad Niyaltigin (Persian: ‎ ‎ ) was a treasurer of Sultan Mahmud Ghaznavi and later of his son Sultan Mas'ud Ghaznavi. Sultan Masud appointed him governor of Punjab region in 1033. Ahmad Niyaltigin with small detachment of soldiers raided Varanasi, before withdrawing back to Punjab.
Izz al-Din Husayn Izz al-Din Husayn (Persian: عز الدین حسین) was the king of the Ghurid dynasty. He succeeded his father Qutb al-din Hasan in 1100. When Husayn ascended the Ghurid throne, his kingdom was in chaos. However, he managed to restore peace, and strengthen his kingdom. During Husayn's late reign, the Seljuq sultan Ahmad Sanjar invaded his domains, defeated him, and captured him. However, Sanjar later released Husayn in return for sending tribute to him. After Husayn's death in 1146, he was succeeded by his son Sayf al-Din Suri. Husayn also had 6 other sons who later divided the Ghurid kingdom among themselves.