Tokisada (時貞), also known as [//en.wikipedia.org/wiki/ Amakusa Shirō] (天草四郎), was the teenage leader of the Shimabara Rebellion. Shiro led the defense of Hara Castle and died when it fell. Executed in the aftermath of the fall, his head was displayed on a pike in Nagasaki for a very long time afterward as a warning to any other potential Christian rebels. His death poem was: "Ima rōjō shiteiru mono wa, raise made tomo to naru." ("Now, those who accompany me in being besieged in this castle, will be my friends unto the next world.") According to some sources, Shiro may have been the illegitimate son of Toyotomi Hideyori, the son of the general who first united all of Japan.