Nevertheless, what a mere local lord, the Date clan, had done at that time, such as establishing a close relationship with a central government after appointed as Kyoto fuchishu, holding the posts of Mutsu shugoshiki and even Oshu Tandai which was reserved for the Ashikaga clan and also putting the Osaki clan, a family line of the Shiba clan (the most powerful Ashikaga family) under its control by sending its illegitimate child to the Osaki clan, were not what other local lords could easily achieve.
とはいえ一介の国人であった伊達氏が、京都扶持衆に列したのを契機に中央政界との緊密性を獲得し、陸奥国守護職補任、さらには室町幕府において足利一門にのみ許されてきた奥州探題職に補任、かつ足利一門屈指の名門で斯波氏の同族　大崎氏に庶子を入嗣として送り込み事実上の傘下に治めた。