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, 20:04, 25 December 2007
*''Birth:1581''
*''Death:1607''
*''Titles: Dewa no kami''
*''Distinction: Tokugawa retainer''
* ''Son: Oosuga Tadatsugu'' [大須賀忠次]
* ''Japanese:'' [[大須賀忠政]]
Tadamasa was the eldest son of [[Sakikabara Yasumasa]]. His grandfather on his mother's side, [[Oosuga Yasutaka]] [大須賀康高], had no sons of his own and so Tadamasa was adopted by him to carry on the Oosuga name. Yasutaka died in [[1589]] and Yasumasa succeeded him, also being given the use of the name 'Matsudaira' [松平] by Tokugawa Ieyasu. When the Tokugawa house was relocated to the [[Kanto]] following [[1590]] the young Yasutaka was established in [[Kazusa province|Kazusa Province]] with a 30,000-koku fief. In 1601 his fief was moved to Tôtômi and increased to 60,000 koku. He fell ill in 1607 and died in Kyoto in the 9th month.
==References==
* [[Sengoku Jinmei Jiten]]
[[Category:Samurai]][[Category:Sengoku Period]]