 In 1739, Hosokawa Munetake of Higo was killed inside Edo Castle by Itakura Katsukane, and the killer was ordered to commit suicide as just punishment; however, Shōgun Yoshimune personally intervened to mitigate untoward adverse consequences for the killer's "fudai" family.Shigemune's grave is at Kōetsu-ji temple, in Kyoto.He also has a grave at Chōen-ji, in Nishio, Aichi.