Fujiwara no Ariko (藤原（三条）有子; 1207 – March 2, 1286) also known as Fujiwara no Yushi, and Ankimon-in (安喜門院) was

Empress of Japan The empress of Japan is the title given to the wife of the Emperor of Japan or a female ruler in her own right. The current empress consort is Empress Masako, who ascended the throne with her husband on 1 May 2019. Empress regnant Titles * ...

as the consort of

Emperor Go-Horikawa (22 March 1212 – 31 August 1234) was the 86th emperor of Japan, according to the traditional order of succession. His reign spanned the years from 1221 through 1232. This 13th-century sovereign was named after the 11th-century Emperor Horika ...

. She became a Buddhist nun in 1246.
The Clear Mirror: A Chronicle of the Japanese Court During the Kamakura
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Notes

Fujiwara clan Japanese empresses consort 1207 births 1286 deaths {{Japan-royal-stub