Does anyone know the origin of "Liu Yao"?

Bai Juyi, a famous poet in Tang Dynasty, is of the same clan as Xiaoman. Bai Juyi is famous for its name. There is a poem that says: Cherry has a Su Fan mouth and willow has a small waist. It's from Liu Zhang's Biography of Baiju in the Old Tang Dynasty. Maggie Su Fan's mouth is small and bright, like a cherry; Xiaoman's waist is weak and slender as a willow.

You know, the new and old Tang books have always been known for their preciseness and conciseness. Even Cen Can, a famous court official and a famous frontier poet, did not make a biography. It is rare for Su Fan and Xiaoman to leave their names in the history books.

When Bai Juyi was in his sixties, he got wind disease and was paralyzed, so he sold his good horse and asked Su Fan to leave him to get married. However, his horse brayed and could not bear to leave.

Su Fan not only has a high literary talent, but also has great affection for the elderly in the dialogue. How can Bai Juyi not be sad? But Bai Juyi let Su Fan, who was "not destroyed", leave him early, also for the future happiness of Su Fan.

White old man died at the age of seventy-four, and it has been more than ten years since Su Fan left. If he has been in Su Fan for more than ten years, how can Su Fan be in his thirties? Her ability to choose a good family is much worse than that of people in their twenties. Bai Juyi sighed and waved a song to let her go.

Baidu Encyclopedia-Su Fan