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. Mas'ud I of Ghazni:  He rose to power by seizing the Ghaznavid throne from his younger twin Mohammad, who had been nominated as the heir upon the death of their father Mahmud of Ghazni.
i don't know