When MINAMOTO no Tameyoshi gave Hoemaru (also called Hizamaru), Shishinoko's kyodaigatana (a sword made by the same person), to his son-in-law, Kyoshin, the chief priest of the Kumano-jinja Shrines, Kogarasu, made as a replacement for Hoemaru, was originally about 6 mm shorter than Shishinoko.
また源為義が兄弟刀の吠丸（膝丸）を娘婿である熊野別当教真に譲った際、吠丸の代刀として作られた小烏が当初は獅子の子より二分ほど長かった。