In his later years, his second son, Sukemune (資宗) (Sukemune spelt as 助宗, also known as Tametsuna) IINUMA, was promoted to kebiishi (an official with judicial and police powers) and later to kokushi (provincial governor) of Awa Province, which was exceptional for a private vassal of the Tokuso family.
晩年は次子飯沼資宗（助宗・為綱）が、得宗被官としては異例の検非違使、更に安房国国司となっている。