The Shiba clan with such a high social standing as the head of the Sankanrei (Three deputies) was so powerfulthat both the head family and the branch families of the Shiba clan based in Oshu (the Kosuiji Shiba clan, the Osaki clan, the Mogami clan, the Tendo clan, and so on) were fairly prosperous at first.
斯波氏は家柄としては三管領の筆頭を誇り勢力も大きいことから嫡流も奥州に拠点を持った斯波氏の一門(高水寺斯波氏、大崎氏、最上氏、天童氏など)らも当初は大いに栄えた。