Fujiwara no Teika
One of Teika's diaries, the "Meigetsuki", says that his son Tameie asked him to arrange one hundred poems for Tameie's father-in-law, Utsunomiya Yoritsuna, who was furnishing a residence near Mount Ogura; hence the full name of "Ogura Hyakunin Isshu". In order to decorate screens of the residence, Fujiwara no Teika produced the calligraphy poem sheets.