Later on, there was also a theory that the Ariwara clan was from the Hirate clan, which Masahide HIRATE, a chief retainer of the Oda clan of Owari Province, who was in the blood line of the Arao clan with the Ariwara surname. (Another theory was the Hirade clan was from the Sugawara clan, the Kamo clan or there is an oral tradition that the Hirate clan was from the Serada clan of the Nitta clan line.)
また、後に在原姓荒尾氏の系統として尾張国・織田氏の重臣である平手政秀を出した平手氏の出自とする説がある（平手氏は他に菅原氏、賀茂氏、伝承として新田氏系世良田氏流との説もある）。