Etymology and distribution of 季松.

Suematsu 【季松】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Miyagi-ken , Ehime-ken Minamiuwa-gun Ainan-chou . Distribution including vertical.

① Convention . Abbreviation for Datezaki. Miyagi-ken Sendai-shi Aoba-ku Kawauchi was in the Edo era in the Sendai Samurai of the Clan office. The same samurai told that it changed name "Date" including Itazaki frankly. Estimated early in the Edo period. 伊達崎 Datesaki reference.

② variant of 伊達 . Ehime-ken Minamiuwa-gun Ainan-chou Mr. It is said that Mr. Date is the descendant of Mr. Date. Ehime-ken Uwajima-shi Marunouchi was in the Edo period in the Uwajima clan in the Clan Office. 伊達 Date reference.