Trần Nhân Tông
Anh Tông was born in 1276 as Trần Thuyên, the first son of the then-emperor Trần Nhân Tông and Empress Khâm Từ Bảo Thánh. In 1292 he was invested as crown prince by Nhân Tông and ultimately was ceded the throne in 1293 while his father still reigned as Retired Emperor () for 16 years.