井伊直政
Sakakibara Yasumasa (1548–1606) rose to prominence as a general under Tokugawa Ieyasu. Along with Sakai Tadatsugu, Ii Naomasa and Honda Tadakatsu, he was known as one of the , and was also styled with the sobriquet of . After the Battle of Sekigahara, he was granted the special honour of changing his name to use one of Ieyasu's name characters – "Yasu". and was awarded the "han" (fief) of Tatebayashi Domain (100,000 "koku") in Kōzuke Province.