Question: What is the date of death of Vakhtang Iii Of Georgia's father?
Sentence (from "Vakhtang III of Georgia"): A son of Demetrius II of Georgia by his Trapezuntine wife, Vakhtang was appointed, in 1302, by the Ilkhan Ghazan as a rival king to his brother David VIII, who had revolted against the Mongol rule.
Relevant evidence: Yes