Wata Kubo-yashiki Residence Ruins is a historic site associated with a general of the Muromachi Shogunate (government). After the 13th Muromachi general, Ashikaga Yoshiteru, was assassinated by three members of the Miyoshi clan in 1565, Yoshiteru's younger brother Ichijoin Kakukei (later general Ashikaga Yoshiaki) was imprisoned at Kofuku-ji Temple in Nara. However, Kakukei escaped from Kofuku-ji Temple guided by Koka warrior, Wada Koremasa, and temporarily went into hiding in the Koka region. This site is said to be the remains of the residence where he lived at the time.
Kakukei sought support from the feudal lords of various provinces with the aim to rebuild the shogunate from his shelter provided by Koremasa. In 1568, Kakukei changed his name to Yoshiaki, and became the 15th shogun of the Muromachi Shogunate with the help of Oda Nobunaga.
The area of Koka, with its mountainous surroundings and proximity to the capital, made it an ideal location for authorities to hide out. This geographic characteristic made it possible for Wada Koremasa to become a powerful military commander with ties to the central political world.