徳川家定
In 1855 Curtius organized the transfer of the HM "Soembing" from Royal Netherlands Navy to the Japanese government as a gift from Dutch King William III to Shogun Tokugawa Iesada. Renamed "Kankō Maru", this was Japan’s first steam warship. "Kankō Maru" was assigned to be a training ship to the newly formed Nagasaki Naval Training Center with 22 Dutch sailors.