@elaterite The big sign on the far right reads 佐久間盛政秀吉ヲ襲フ "Sakuma Morimasa attacks Hideyoshi." Sakuma Morimasa (1554-1583) was a samurai. Hideyoshi, full name Toyotomi Hideyoshi (1538-1598) was a samurai and daimyо̄, considered the Great Unifier of Japan. The red caption on the right reads 羽柴秀吉, Hashiba Hideyoshi, which was another name by which Hideyoshi was known. The caption above the horseman on the left reads 佐久間盛政, Sakuma Morimasa. I can't make out the writing at bottom left.