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.
Muhammad II ibn Mahmud Muhammad II ibn Mahmud (1128–1159) was Sultan of Seljuq Empire from 1153 to 1159. He was son of Mahmud II and brother of Malik-Shah III. "The Cambridge History of Iran" notes that Sultan Muhammad "tried energetically to restore the slipping authority of his dynasty in Iraq,"