The Kuwabara family is a toshoke (hereditary lineage of court nobles above a certain rank) established during the Edo period by Nagayoshi KUWABARA (Shonii - Senior Second Rank), Chunagon (vice-councilor of state), Shikibusho (Minister of Ceremonies) (1661 - 1737), who was the fourth son of Tameyasu GOJO (Shonii - Senior Second Rank), Dainagon (chief councilor of state) (1619 - 1677).
桑原家（くわばらけ）は江戸時代に五条為庸（正二位・大納言）（1619年－1677年）の四男である桑原長義（正二位・中納言・式部省）（1661年-1737年）が起こした堂上家である。