was a Japanese samurai of the Azuchi–Momoyama period. He was the second son of Oda Nobunaga. He survived the decline of the Oda clan from political prominence, becoming a daimyō in the early Edo period. Though often described as an incompetent general, Nobukatsu was a skilled warrior. In the battle of Komaki and Nagakute, he used a 13th-century tachi of the Fukuoka Ichimonji school, to slay a samurai known as Okada Sukesaburō, therefore the blade was known as "Okada-giri Yoshifusa", now a national treasure. Biography In 1570, Nobukatsu became an adopted heir of the Kitabatake clan and married a daughter of the former lord of Kitabatake, Tomonori. The true nature of this marriage was a condition of truce forced by the Oda clan to the Kitabatake clan. In 1575, Nobukatsu officially became the head of the family. The next year, he killed his father-in-law, imprisoned the previous lord, who was his father by adoption, and completely took over the Kitabatake clan. In 1579, eager to achieve fame, Nobukatsu directed a first invasion of Iga, Iga Province, which only ended in disastrous failure and severe rebuke from his father. Two years later in 1581, Nobunaga himself led the second invasion with an army of several ten thousand, destroyed the whole region and placing control iga province in Nobukatsu's hands. Death of Nobunaga When Nobunaga and his heir, Nobutada, died at the Honnō-ji incident in 1582, problems arose about who would succeed the lordship of Oda clan. When Nobukatsu and his younger brother, Nobutaka, quarreled over the matter, a council decided on the infant son of Nobutada, Oda Hidenobu. The opinion of Toyotomi Hideyoshi was most influential on this decision. At this point, Nobukatsu changed his surname back to Oda. He succeeded his father as lord of Mino, Owari, and Ise Provinces. Decline of Nobukatsu In 1583, during the succeeding chaotic years, Nobukatsu joined with Hideyoshi to destroy Oda Nobutaka. However, soon their relationship became hostile too, and Nobukatsu allied with Tokugawa Ieyasu to fight Hideyoshi in the Battle of Komaki and Nagakute in 1584. After more than a half year of battles, Hideyoshi persuaded Nobukatsu to make peace, offering him the security of the dominion. Nobukatsu took this offer and practically became a retainer of Hideyoshi. Later in 1590, when he served at the Odawara Campaign, he refused to accept Hideyoshi's order to change his dominion, and later he not only