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.
Sökmen II Nāṣir al-Dīn Sökmen II (died 1185) was the "Shāh-i Arman", the ruler of the Turcoman principality centred on Ahlat, from 1128 until his death. He married Shāhbānū, daughter of ′Izz al-Dīn Saltuq II, ruler of Erzerum. He and his wife both engaged in major building projects that brought the Shāh-i Armanid state to its zenith.