Okabe Tadazumi kills Taira Tadanori at Ichi-no-tani
Okagami, historical work
Oka-yama, castle in Bizen
Okazaki, in Mikawa, Ieyasu's castle in
Okazaki Masamune (1264-1344), swordsmith of Kamakura
Oke, Prince, see Kenso
Okehazama, battle (1560) victory of Nobunaga
Oki, Princess, see Myosho
Okimachi, 106th Emperor (1557-86); honours Kenshin, summons Nobunaga to Kyoto; Hideyoshi; decrees against Christianity
Okisada, see Sanjo