was a commander and daimyo in the service of Tokugawa Ieyasu in Japan during the Azuchi-Momoyama and Edo periods. In 1563, when an uprising against Ieyasu occurred in Mikawa Province, Masanobu took the side of the peasants against Ieyasu. He fled from the Tokugawa, rejoining them in the 1570s or 1580s at the behest of Ōkubo Tadayo, and accompanied Ieyasu as he crossed Iga Province following the assassination of Oda Nobunaga at Honnō-ji.