In 1694, Nobutake murdered his senior vassals, Saemon IKOMA and Gorobe TANAKA, who were the descendants of the retainers who contributed to founding the domain, and killed himself.
1694年（元禄7年）、信武は、創業功臣の裔である重臣生駒三左衛門、田中五郎兵衛を討ち果たしたが自らも自害を遂げた。