Sakakibara Yasumasa

Sakakibara Yasumasa
榊原 康政
Lord of Tatebayashi
In office
1590–1606
Succeeded bySakakibara Yasukatsu
Personal details
Born1548
Mikawa Province, Japan
DiedJune 19, 1606
Edo, Japan
Military service
Allegiance Sakakibara clan
Matsudaira clan
Tokugawa clan
RankRōjū, Buke Shitsuyaku
CommandsTatebayashi Domain
Battles/wars

Sakakibara Yasumasa (榊原 康政; 1548 – June 19, 1606) was a Japanese daimyō of the late Sengoku period through early Edo period, who served the Tokugawa clan.

As one of the Tokugawa family's foremost military commanders, he was considered one of its "Four Guardian Kings" (shitennō 四天王) along with Sakai Tadatsugu, Honda Tadakatsu and Ii Naomasa. One of his most notable military accomplishments occurred during the Battle of Anegawa when he changed the tide of the battle with a flanking maneuver. He is also famous for conquering many Takeda clan castles in Tōtōmi Province from 1574-1579.

His court title during Toyotomi Hideyoshi's government was Shikibu-Shō (式部大輔). During Tokugawa shogunate, he was appointed as Rōjū, or elder councilor.