His birthplace is recorded in "Imperial Choson (Korea) chronicles" as being Fujian Province in China however, more credence is given to the "Zensetsu Heiseiko" and "Sappan Kyuki-zatsuroku" which refer to him as being born in Jianfu, Jianxi Province, China.
出身は『朝鮮王朝実録』などから中国・福建省とされてきたが、『全浙兵制考』や『薩藩旧記雑録』から江西省・吉安府の出身とする方が有力とされる。