[2] He rose to prominence thanks to his father's rise following the death of Uyghur noble Amir Sevinch in January 1318, who was guardian of Ilkhan Abu Sa'id.
According to Safvat as-safa, he met Safi-ad-Din Ardabili in Karabakh in 1320 who was visiting with Shams al-Din Jamalan (grandson of Zahed Gilani).
When it was discovered that Demasq had been having with an affair with a former concubine of the late Ilkhan Öljeitü's,[3] Abu Sa'id used this as a pretext for moving against him.
Demasq, trapped in Sultaniyah, tried to escape, but was captured by emir Misr Khwaja in the process, on 25 August 1327.
Other versions suggest that he was killed on the instigations of Narin Taghay (a nephew of Taghachar and grandson of Kitbuqa),[9] who was previously banished from the court.