Further, in the subsequent Battle of Sekigahara, Motochika's forth son, Morichika CHOSOKABE who took over head of the family, joined the Western Camp, leading to confiscation of shoryo (territory) and Kaieki (forfeit rank of Samurai and properties) after the war.
さらにその後の関ヶ原の戦いでは、家督を継承していた元親の四男長宗我部盛親が西軍に与したため、戦後、所領は没収され改易となった。