The KOTOKUI family descended from the ABE clan; however, since the first family head, Tomoyuki KOTOKUI was adopted by the KAMO clan, the family is considered as part of the KAMO line.
阿倍氏の末裔であるが、初代幸徳井友幸が賀茂氏の養子であったために、賀茂氏系とされるのが一般的である。