Kuroda Yoshitaka , also known as Kuroda Kanbei , was a Japanese daimyō of the late Sengoku through early Edo periods. Renowned as a man of great ambition, he succeeded Takenaka Hanbei as a chief strategist and adviser to Toyotomi Hideyoshi. Kuroda became a Christian when he was 38, and received "Simeon Josui" as a baptismal name (rekishijin). His quick wit, bravery, and loyalty were respected by his warriors.

Takenaka Shigeharu , who was also known as Hanbei (半兵衛), was a Japanese samurai during the Sengoku period of the 16th century. Hanbei was the castle lord in command of Bodaiyama Castle. He was a chief strategist and adviser of Toyotomi Hideyoshi. His father was a local samurai Takenaka Shigemoto. He initially served the Saitō clan of Mino Province, but later plotted an uprising and took over the Saitō clan's Gifu Castle.