Tadachika NAKAYAMA was a court noble who lived from the late Heian period to the early Kamakura period and served as Naidaijin (Minister of the Palace); the name given to his diary (which is written as '山塊' in kanji) is derived from a combination of the last kanji of Tadachika's yago (family name), which is written as '中山' in kanji, and the first kanji of the Chinese name given to the office of minister ('塊門', which is pronounced "Kaimon").
中山忠親は平安時代末期から鎌倉時代初期の公卿で内大臣を務めた人物で、書名の「山槐」とは忠親の家号「中山」と、大臣家の唐名（槐門）を合わせたものに由来する。