A family (the Sagami-Naito clan) which claimed to be of Naito clan and also identified itself as the Hidesato group existed in Sagami Province, but the origin of this family is uncertain.
相模国にも内藤姓を名乗った一族が存在し（相模内藤氏）、この内藤氏も秀郷流を称するが定かではない。