Seii (c. 1326 – c. 1350) was the second king of the Okinawan kingdom of Chūzan

Chuzan

Chūzan was one of three kingdoms which controlled Okinawa in the 14th century. Okinawa, previously controlled by a number of local chieftains or lords, loosely bound by a paramount chieftain or king of the entire island, split into these three more solidly defined kingdoms within a few years after...

. He succeeded his father, Tamagusuku

Tamagusuku

was a king of the Ryūkyū Islands.Tamgusuku was a "king" of the Okinawan kingdom of Chūzan from roughly 1314-1336.He was the third son of Eiji , he was the fourth ruler of the lineage of Eiso was a king of the Ryūkyū Islands.Tamgusuku was a "king" of the Okinawan kingdom of Chūzan from roughly...

, in 1336, at the age of ten. His reign is characterized by the meddling of his mother in government affairs, and her corruption. The king's mother took advantage of her privileges and position, and severely damaged popular support for her son.

Seii died in 1349. The Governor of Urasoe

Urasoe, Okinawa

is a city located in Okinawa, Japan. The neighboring municipalities are Naha to the south, Ginowan to the north, and Nishihara to the east.Urasoe was the original capital of the Okinawan kingdom of Chūzan for several centuries until it was supplanted by Shuri in the late 14th or early 15th century...

, Satto

Satto

Satto , also known as Chadu, was a king of Chūzan, one of three kingdoms formerly on the island of Okinawa. His reign was marked by expansion and development of Chūzan's trade relations with other states, and the beginning of Okinawa's tributary relations with Ming Dynasty China, a relationship...

, seized power for himself.