The commanders Yasuyuki MATSUI and Tatsuyuki ARIYOSHI at Kitsuki-jo Castle asked Josui for reinforcements and, in response, Josui moved his army and clashed with the army of Yoshimune OTOMO at Ishigakibaru (presently Beppu City) on October 19. |
城将・松井康之と有吉立行は如水に援軍を要請、如水はこれに応じ9月13日 (旧暦)(10月19日)、石垣原(現在の別府市)で大友義統軍と衝突した。 |