Yamamoto Kansuke (1501 October 18, 1561) was a Japanese samurai of the 16th century who was one of Takeda Shingen's most trusted Twenty-Four Generals. Also known by his formal name, Haruyuki, he was a brilliant strategist, and is particularly known for his plan which led to victory in the fourth battle of Kawanakajima against Uesugi Kenshin. However, Kansuke never lived to see his plan succeed; thinking it to have failed, he charged headlong into the enemy ranks, dying in battle. From: 'Stories of Courageous Generals of the Provinces of Echigo and Kai' (Koetsu yosho den). Publisher: Sumiyoshi-ya Masagoro, c. 1848-1849.