Katsu Kaishū family name Katsu
Count Katsu Yasuyoshi (勝 安芳, born Katsu Yoshikuni (勝 義邦); March 12, 1823 – January 21, 1899), best known by his nickname Katsu Kaishū (勝 海舟), was a Japanese statesman and naval engineer during the late Tokugawa shogunate and early Meiji period. Kaishū was a nickname which he took from a piece of calligraphy (Kaishū Shooku 海舟書屋) by Sakuma Shōzan. He went through a series of given names throughout his life; his childhood name was Rintarō (麟太郎). He was often called Awa (安房) from his ceremonial title Awa-no-kami (安房守) during the late Tokugawa shogunate and later changed his name to Yasuyoshi after the Meiji Restoration.
Katsu Kaishū eventually rose to occupy the position of commissioner (Gunkan-bugyō) in the Tokugawa navy. He is particularly known for his role in the surrender of Edo.
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