Mr. Omori Katsurayama

…The Omori Katsurayama Family Tree states that they are descendants of the Minister of the Interior, Fujiwara no Ise, but the authenticity of this is unclear. The ancestor of the Omori Katsurayama clan, Koreyasu, 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 Katsurayama clan descends from Chikayasu's younger brother, Korekane, and through Korekane's son, Koretada, also produced many Kamakura vassals. …

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…《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。…

※「大森葛山氏」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