The was a Japanese noble family of imperial descent
The name of the clan is also read Arihara.[1]
The clan was initially formed during the Kōnin era (810-824)[2] in the reign of Emperor Saga from the children of .[1] In 826,[2] following a request by Takaoka's brother, the latter's sons Yukihira, Narihira, and were also given this name.[1] The descendants of Narihira, a great waka poet, continued to flourish.[1] The clan remained politically obscure, however, due to pressure from the powerful Fujiwara clan.[1]