Sadamasa Okudaira

Sadamasa Okudaira, later known as Nobumasa Okudaira was a vassal of the Tokugawa who was kept as a hostage in the Takeda army before returning to his master's army at the expense of his army. He is remembered in history for defending Nagashino Castle, with his vassal Sune'emon, valiantly before Nobunaga Oda allowed Sadamasa to adopt 'Nobu' as part of his name. He stayed loyal to the Tokugawa and Eastern Army for the rest of his life.

Role in Games
In Samurai Warriors, Nobumasa appears in Nagashino defending Nagashino Castle which is in a position that endangers the Takeda main camp so Katsuyori Takeda tells Yukimura Sanada to seize it as a first priority. In the Oda-Tokugawa scenario, it is not as important nor does the player need to rescue it. Nobumasa by default would usually be routed by Yukimura or Kunoichi unless the player comes to his rescue. In Samurai Warriors: Xtreme Legends he also appears at Komaki-Nagakute. In [[Samurai Warriors 2, in the Oda-Tokugawa scenario, it is stressed to rescue him because if he falls, it is easier for Katsuyori to withdraw as well as a morale drop. Should he fall, however, Tadatsugu and Hanzo Hattori will appear to stop his escape as well. In the Takeda scenarios, he either is a defender of Nagashino Castle or as in Kenshin's scenario, he and Nobuyasu Matsudaira ambush the Uesugi at Tobigasu garrison under Mitsuhide's command. In Samurai Warriors 3, he appears at Nagashino under the name Sadamasa although in most scenarios there is no mission to rescue him and Nagashino castle is treated as any other garrison on the map. The only exception to this rule is in Mitsuhuide's scenario where he feels it is necessary to help the defences of all the garrisons before decimating the Takeda cavalry. Nobumasa does appear more frequently in other battles for the Tokugawa such as Ueda Castle and Sekigahara. In Samurai Warriors 4, Nobumasa is the tertiary commander at Nagashino, along with Ieyasu and Nobunaga so Nagashino castle cannot fall in the Oda scenario at any cost. His vassal, Sune'emon also marks his first in-game appearance and can be rescued to gain a morale boost for the Oda.