Nobushige had three sons, among them, Nobuyori, who was two years older than Nobutoyo, succeeded the family name of the Mochizuki clan in Shinano Province and became a territorial lord's relative who become the head of his own family.
信繁には3人の男子があるが、信豊の2歳年長の兄である信頼は信濃国望月氏の名跡を継いで親類衆となっていた。