Who married Emperor Heizei?

Emperor Heizei (平城天皇, Heizei-tennō; 773 – August 5, 824), also known as Heijō-tennō, was the 51st emperor of Japan, according to the traditional order of succession. Heizei's reign lasted from 806 to 809.

Fujiwara no Taishi (藤原 帯子, also read Fujiwara no Tarashiko; died 794) was a Japanese noblewoman of the Nara period. She was a consort of Prince Ate. She had no children with him, but more than a decade after her death she was granted the title of empress on her husband's becoming Emperor Heizei.