Ceniz khan was hulagu khan's grandfather

Hulagu's real name is khuleau.

Kublai Khan had three brothers, Mongke Khan, Ariq Boke, and Hulagu Khan.

yes

he was the founder of ilkhanate sultanate

which later adopt shia islam

Hul Gu, better known as Hulagu Khan and also known as Hulagu, Hülegü, or Hulegu. (c. 1217 - Febuary 8, 1265), was a Mongol ruler who conquered much of Southwest Asia. Son of Tolue and the Kerait princess Sorghaghtani Beki, he was a grandson of Genghis Khan, and the brother of Arik Boke, Mongke and the great Kubalai Khan. Hulagu's army greatly expanded the southwestern portion of the Mongol Empire, founding the Ilkhanate of Persia, a precursor to the eventual Safavid Dynasty, and then the modern state of Iran. Under Hulagu's leadership, the Mongols destroyed the two greatest centers of Islamic power, Baghdad and Damascus, causing a shift of Islamic influence to the Mamluks in Cairo. It was also in Hulagu's reign that historians switched from writing in Arabic, to writing in Persian.