Question: When was Trần Quốc Khang's father born?
Sentence (from "Trần Thái Tông"): birth name: Trần Cảnh, 17 July 1218 – 5 May 1277) was the first emperor of the Trần Dynasty, seated on the throne for 33 years (1226–58), being Grand Emperor for 19 years.
Relevant evidence: Yes