Katsurayama Koreshige

...The Omori clan of the Northern House of the Fujiwara clan. Originating from Katsuyama, Suruga County, Suruga Province (present-day Katsuyama, Susono City, Shizuoka Prefecture). The Omori Katsuyama Genealogy states that they are descendants of the Minister of the Interior, Fujiwara no Iechika, but the authenticity of this is unclear. Koreyasu, the ancestor of the Omori Katsuyama clan, was the lord of Takahashi in Mikawa and became the governor of both Kai and Suruga provinces. After that, the Omori clan produced many Kamakura vassals, including Chikayasu and Chikaie. The Katsuyama clan descended from Chikayasu's younger brother Korekane, and through Korekane's son Koretada, they also produced many Kamakura vassals. Koretada's son Koreshige was known as "Ojukudono" (the Onjuku family) because he stayed with Minamoto no Yoritomo during the summer hunting season at Aizawa in Fujino in 1193 (Kenkyu 4), and some of his descendants took the name Onjuku. ...

*Some of the terminology that refers to "Katsuyama Tadashige" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…藤原北家大森氏族。駿河国駿河郡葛山(現，静岡県裾野市葛山)より起こる。《大森葛山系図》は内大臣藤原伊周の後裔としているが真偽のほどは不明。大森葛山氏の祖惟康は三河高橋の領主で甲斐･駿河両国の守となり，以後大森氏は親康，親家と続いて鎌倉御家人を輩出した。葛山氏は親康の弟惟兼の流れをくむもので，惟兼の子惟忠を経てやはり鎌倉御家人を多く出している。惟忠の子惟重は1193年(建久4)富士野藍沢の夏狩に源頼朝の宿をしたことから〈御宿殿〉と呼ばれ，子孫の中には御宿氏を名のる一流もあらわれた。…

※「葛山惟重」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報