The fortress was first attacked in August 1338 by a small force under Nitta Yoshisada, numbering roughly fifty horse, in what would come to be known as the Battle of Fujishima.

Hosokawa Akiuji had been ordered by Ashikaga Takauji to aid Shiba Takatsune in the defense, and encountered Nitta's force a short distance from the fortress.

[1][2] The following year, upon his enthronement, Emperor Go-Murakami ordered the late Nitta Yoshisada's brother, Wakiya Yoshisuke, to lead another attack on the fortress.

The resemblance to the death of Minamoto no Yoshinaka as described in the Heike Monogatari has led to questions about whether the account is factual.

In 1660, a farmer tilling the land near the site of the battle uncovered a kabuto helmet and presented it to Matsudaira Mitsumichi, daimyō of Fukui Domain.