– 1456) was a military official of the early Joseon Dynasty and is remembered as one of the six martyred ministers.
Yu was born in Pocheon; his date of birth and lineage are not known with certainty.
Yu joined a conspiracy of high officials to restore Danjong.
Yu and the other conspirators were arrested; after he failed to repent under torture, he was executed.
[1] A memorial to Yu stands today inside Chungmokdan located in Soheul-eup, Pocheon, South Korea.