After Nobutoyo, his successors Nobutoki, Nobuyasu and Nobunao TAKEDA were not shown in the general record of Wakasa Takeda clan, and the biography of Nobunao is unknown.
信豊以降の信時・信恭・信直などは一般的な若狭武田氏の系図には見られない人物であり、信直の経歴は不詳である。