What dynasty is Liu's poetry?

At the end of the Sui Dynasty, there was a place where the Liu family lived in Liujiaguan, Miaoxia Town, Ruzhou, Henan Province. This is a beautiful and naive girl, born in a scholarly family. She can play chess, calligraphy, painting and know everything since she was a child, and is deeply loved by her neighbors. Then her parents died one after another, and the girl came to Chang 'an and settled down with her brother and sister-in-law who were often officials. After the demise of the Sui Dynasty, her brother and sister-in-law died one after another, leaving her with nowhere to go, seeing through the world of mortals and becoming a nun. When she became a monk, the young girl took Bai Mudan, who was planted in her original home, to the monastery to show her devotion to Buddhism and lead a totally clean life. Under her careful management, Bai Mudan is very lush and beautiful. A thousand flowers, big and complete, double petals, white and reddish, crystal clear and moist, such as the skin of a beautiful woman and the face of a child. Viewers all praise its beauty and praise its beauty. Therefore, every April, many faithful women come to this temple to worship the Buddha and watch the flowers, taking pleasure in offering flowers to the Buddha, and the incense is getting stronger and stronger. Therefore, these flowers came from Liu's residence, hence the name Liu's Pavilion, also known as Liu's Pavilion. Later, this peony variety spread to Tian Peng, Sichuan and Heze, Shandong, and its fragrance spread far and wide.