Soemon TAKEUCHI and his Ichiryo gusoku members refused to hand over the Urato-jo Castle and demanded that Morichika should be given a part of the old territory, or 'half land of Tosa'; this is called 'Urado riot'.
竹内惣右衛門を中心とする一領具足は、浦戸城の引渡しを拒否し、盛親に旧領の一部（土佐半国という）を与えることを要求した（浦戸一揆）。