What are the biographies of Yu Shinan?

Yu Shinan (557~64 1), a native of Yuyao, Zhejiang, was one of the four great calligraphers in the early Tang Dynasty. He adopted his uncle as his son since he was a child. He studied calligraphy under the famous calligrapher Zhi Yong and the eminent monk, and he was well versed in Wang Xizhi's brushwork. Li Shimin, Emperor Taizong, highly valued Yu Shinan, who was quiet, upright and loyal. He is Dr. Guanglu from Yin Qing, and holds a bachelor's degree in Hong Wen Pavilion. Emperor Taizong often said that Yu Shinan had "five unique qualities" in virtue, loyalty, erudition, style and writing, and spoke highly of him. Yu Shinan's calligraphy style is profound, elegant and agile, soft outside and firm inside, vigorous in style, with little carving and less anger. It is called "Yu Ti" school, and it is also called "encounter" with Ou Yangxun's "Jin Xian". Emperor Taizong once vowed to learn from Wang Xizhi and Yu Shinan, which shows his great influence. His cursive script is almost a direct copy of Wang Xizhi's cursive script. Handed down from ancient times, the works include the tablet of Confucius Temple, the epitaph and preface of Princess Runan, Ji and so on.