In 1337, following the war between the Southern and Northern courts, Mitsumine Castle was built as a strong strategic point atop Mt.
It was governed over by Wakiya Yoshisuke, under the orders of Nitta Yoshisada, the high ranking general of the Southern Court.
However, in 1340 Miyama Shigeyuki of the Northern Court laid siege to the castle.
This siege ended with the death of Miyama and destruction of the castle.
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