Amakusa Shiro Tokisada was a Japanese Christian who led a revolt in Shimabara against the oppressive Tokugawa government, who sought to wipe out Christianity in Japan.
At first, he and his fellow Christians did rather well against the government, but were eventually beaten back into a fortress, where they were massacred.
Amakusa Shiro Tokisada's body was never found.
Amakusa Shiro Tokisada is also a character from the semi-popular SNK weapon-fighter series, Samurai Spirits/Shodown. His weapon is an orb(?) that's pretty fun to throw around, and does some good damage.