Emperor Heizei
Ariwara no Narihira was born in 825. He was a grandson of two emperors: Emperor Heizei through his father, Prince Abo; and Emperor Kanmu through his mother, Princess Ito. He was the fifth child of Prince Abo, but was supposedly the only child of Princess Ito, who lived in the former capital at Nagaoka. Some of Narihira's poems are about his mother.