National temple of the kingdom Baekje
Wangheungsa Temple (王興寺, "Monastery of royal propagation") was the national temple of the Korean kingdom of Baekje. Its construction was begun in 599 under the reign of King Beop and completed under his son and successor, King Mu, in 634.
References.
Jonathan W. Best, “King Mu and the Making and Meanings of Miruksa,” in "Korean Religions in Practice", edited by Robert Buswell (Princeton: Princeton University Press, 2007), 35–50.