Kanemaki Jisai and Sasaki Kojirō were both a what of respective fields of study?
Sasaki Kojirō Sasaki Kojirō (佐々木 小次郎 , also known as Sasaki Ganryū) (1585? – April 13, 1612), often anglicised to Kojirō Sasaki, was a prominent Japanese swordsman widely considered a master of his craft, born in Fukui Prefecture. He lived during the "Sengoku" and early "Edo" periods and is most remembered for his death while battling Miyamoto Musashi in 1612.
Ichijō Kanesada Ichijō Kanesada (一条 兼定 , 1543 – July 27, 1585) was the succeeding ruling head over Ichijō family's Tosa Province, throughout the late Sengoku period of Feudal Japan.