In 1620, they served under Yorifusa TOKUGAWA of the Mito family and was given 15,000 koku, thereafter, he changed his post name to Danjo no jo (a post named "jo" [referring to a judge] in the "Danjo" [referring to the Ministry of Justice]).
元和6年に水戸家徳川頼房附きとなり、安房国内に1万5000石の領地を与えられ名乗りを弾正忠とする。