The main character of this Dutiful Son’s Monument is dutiful son Deok-kyu Lee who lived in late Joseon Dynasty. He lost his dad when he was young and was brought up by his widowed mother, and one day when his mother became very ill, Lee broke ice in the middle of winter to catch a carp to save his mother. When such filial behavior is known the state built this Baekwonmun in 1904 to honor his filial piety and praised his filial act.