This article incorporates material translated from the corresponding article in the Japanese Wikipedia.
Yanagihara Naruko (Japanese: ????), also known as Sawarabi no Tsubone (26 June 1859 – 16 October 1943), was a Japanese lady-in-waiting of the Imperial House of Japan.
A concubine of Emperor Meiji, she was the mother of Emperor Taisho and the last concubine to have given birth to a reigning Japanese emperor.