- Died: 1576
- Title: Shimotsuke no Kami
Nobutomo, a son of Tadamasa (d. 1543) sided with Oda Nobuhide in 1543, but eventually rejoined the Matsudaira. He went on to serve Tokugawa Ieyasu (whose mother was Nobutomo's sister) and held Kariya castle. 1576 Oda Nobunaga charged that Nobutomo had sold rice to Akiyama Nobutomo (a rival Takeda general) during the previous year's siege of Iwamura and Tokugawa Ieyasu thus sent Hiraide Chikayoshi to kill him. Nobutomo's house was succeeded by his brother Mizuno Izumi no Kami Tadashige (1541-1600).
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005