He was the second ruler of the Eiso dynasty; that is, his father was King Eisà  and his son was King Eiji. The years of Taisei's reign were uneventful. Taisei was the grandfather of Tamagusuku.
Notes
References
Kerr, George H. (1965). Okinawa, the History of an Island People. Rutland, Vermont: C.E. Tuttle Co. OCLC 39242121