The family name of Karahashi was officially given during the time of Arimasa KARAHASHI (Court Rank, the Office of the Palace Table, 1275 - 1356), some time between the late Kamakura period and the period of the Northern and Southern Courts (Japan).
正式には鎌倉時代末期から南北朝時代(日本)の唐橋有雅（位階・大膳職）（1275年-1356年）から唐橋の家名を称した。