Liu Luoguo was from the Qing Dynasty.
Liu Luoguo's real name is Liu Yong, and his nickname is Shi'an. He also has other names such as Qingyuan, Xiangyan, Dongwu, Mu'an, Minghua, and Riguanfeng Taoren. He was a calligrapher, painter, and politician in the Qing Dynasty. A native of Panggezhuang, Zhucheng, Shandong Province (now part of Gaomi), his ancestral home is Feng County, Xuzhou, Jiangsu. In the 16th year of Qianlong's reign (1751), he was the second scholar in the second class and was the son of Liu Tongxun, a bachelor. From an official to a cabinet scholar, he is an honest official and has the style of his father.
Liu Yong was a Jinshi in the 16th year of Qianlong's reign. He served as a minister of the Ministry of official affairs and a bachelor of Tiren Pavilion. He died in Beijing on December 25, the ninth year of Jiaqing. Posthumously named Wenqing, he died at the age of 85.
His great-grandfather Liu Bixian was a Jinshi during the Shunzhi period, his grandfather Liu Ji served as the chief envoy of Sichuan, and his father Liu Tongxun was a famous official of the Qianlong Dynasty. Liu Yong grew up in a famous prime minister's house, his family members had been officials for generations, and he received a good education since he was a child.
Extended information:
It is said that Liu Yong had a hunchback, so he was nicknamed Liu Luoguo among the people, but this is not consistent with historical facts. Emperor Jiaqing once called Liu Yong "Liu Tuozi". Liu Yong was an old man in his eighties at the time.
Liu Yong is good at calligraphy and handwriting, especially small regular script. His calligraphy uses thick ink, rich and vigorous appearance, and has a unique style. He is a calligrapher of the Qing Dynasty, and is also regarded as a calligrapher by Yan Zhenqing and Su Shi. His calligraphy was originally learned from Zhao Mengfu of the Yuan Dynasty, and he established his own calligraphy in his middle age. He took the Wei and Jin Dynasties as his master, and his writing style is ancient and rich. Together with Tie Bao, Weng Fanggang and Prince Cheng, they are known as the four major calligraphers of the Qing Dynasty.
When Liu Yong wrote the hand scroll of Du Fu's poems, he wrote it on water-red paper with golden flowers, which was very unique. The first poem is titled Chicken Binding, which describes a servant tying chickens to sell in the market. It arouses the poet's thoughts on the relationship between humans, chickens, and insects, and the content is quite interesting.
As for calligraphy, the round and graceful fonts appear to be soft and boneless, but in fact they hide their strength in their rich appearance and are quite restrained. The predecessors commented that Liu Yong’s calligraphy is called Mianli. Hiding the needle should be what it means. After the age of seventy, he concentrated on the stone tablet calligraphy of the Northern Dynasties. His calligraphy uses thick ink, thick and rich ink, but the skeleton structure is very strong, combining both softness and rigidity, making it unique.
Baidu Encyclopedia-Liu Yong