The grave of Hisako, the wife of Nanko (Masashige KUSUNOKI), is adjacent to the Nana-shajinja Shrine in Nagataki, Yamagata City, Gifu Prefecture, and the characters of "Hachioji-gu Shrine" (literally Eight, King, Temple, Shrine (or Palace)) are engraved on it.
岐阜県山県市長滝にある七社神社横に、八王寺宮と刻まれた楠公夫人久子の墓がある。