Nobumitsu was a younger brother of Oda Nobuhide and held Moriyama castle in Owari province. He was one of Nobuhide's most important retainers, fighting alongside him in the First Battle of Azukizaka (1542) and later assisted his nephew Nobunaga in the capture of Kiyosu (1544) and Muraki (1554). He died suddenly in 1555, though just how is a matter of speculation. One theory holds that he was murdered by Sakai Magohachirô, possibly on Nobunaga's orders.
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005