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, 10:58, 14 September 2006
* ''Born: [[1548]]''
* ''Died: [[1606]]''
Yasumasa served [[Tokugawa Ieyasu]] from childhood and rose to become one of his chief retainers. He served in a notable capacity at the [[Battle of Anegawa]] (along with [[Honda Tadakatsu]] providing an attack on the flank of the Asai forces dangerously pressing [[Oda Nobunaga]]) and was present at [[Battle of Nagashino|Nagashino]], helping to defeat [[Naito Masatoyo]].
During the [[Komaki Campaign]] ([[1584]]) Yasumasa wrote up a statement attacking Hideyoshi and calling on support for the cause of [[Oda Nobuo]] and later accompanied Ieyasu to Osaka to meet with Hideyoshi himself ([[1586]]). During this trip he was awarded with the honorific title Shikibu-taiyu. In [[1590]] he participated in the [[Odawara Campaign]]. Following Ieyasu's move to the Kanto Region that same year, Sakikabara was given the castle of Tatebayashi and made the head of a committee responsible with assigning fiefs. While Ieyasu was away on Kyushu during Hideyoshi's Korean Campaigns Sakakibara acted as one of [[Tokugawa Hidetada]]'s councilors and later was involved in the campaign against [[Uesugi Kagekatsu]] ([[1600]]).
Yasumasa was succeded by his son Yasukatsu, who fought at [[Osaka Castle]] ([[1614]], [[1615]]). The Sakikabara remained one of the Tokugawa's most trusted retainer houses into the [[Edo Period]].
Yasumasa was also known as [[Sakikabara Heishichi]] and by his other titles, Koheida and Daijuji
[[Category:Samurai]]