Question: When was Trần Quốc Khang's father born?
Sentence (from "Trần Quốc Khang"): Prince Tĩnh Quốc Trần Quốc Khang (1237–1300) was the first prince of the Emperor Trần Thái Tông, the eldest brother of Trần Thánh Tông and princes
Relevant evidence: Yes