The Japanese surnames etymology dictionary.
Ishikawa-ken , Toyama-ken . Ishikawa-ken Northern area (formerly Noto Country) is a place name with a record since the Nara era. There is an example using Noto's "Noh". Ishikawa-ken Kanazawa-shi Marunouchi was in the Edo era at the Kaga clan in the Clan office.
※ Goguryeo system . There is a record in 724 (the first year of Kamikura). Location unknown.