Katsui Gohachirô was an uncle of [[So Yoshiakira|Sô Yoshiakira]], the final ''daimyô'' of [[Tsushima han]], who is known for leading a coup in [[1864]] to oust a rival faction within the domain leadership. | Katsui Gohachirô was an uncle of [[So Yoshiakira|Sô Yoshiakira]], the final ''daimyô'' of [[Tsushima han]], who is known for leading a coup in [[1864]] to oust a rival faction within the domain leadership. |