Hisanori UTSUNOMIYA, a grandson of Sadahisa UTSUNOMIYA (a grandson of Yasumune UTSUNOMIYA) of the Chikugo-UTSUNOMIYA clan, inherited the family name of the KAMACHI clan (a branch of Saga Genji) to become the founder of the Kamachi-UTSUNOMIYA clan, while Masanaga OKI, a son of Tomotsuna UTSUNOMIYA (the younger brother of Hisanori) became the founder of the OKI clan with placing its ruling base on Oki-jo Castle and Masanaga was the direct ancestor to Munemitsu OKI.
宇都宮泰宗の孫になる筑後宇都宮氏の宇都宮貞久の孫の宇都宮久憲は、嵯峨源氏の蒲池氏の名跡を継ぎ、宇都宮党蒲池氏の祖となり、久憲の弟の宇都宮資綱の子の大木政長は、泰宗が拠点とした大木城を拠点にして大木統光の祖となる。