Yan Wen, Shi Guwen
The founder of Xiao Zhuan is Li Si.
The third question is that Wei, Jin, Southern and Northern Dynasties and the early Tang Dynasty were the richest times, and many calligraphers, running scripts and cursive scripts appeared.
Wei and Jin demeanor, that is to say, a style of writing at that time, was determined by the social environment at that time.
His main works are Seventeen Posts and Wang Xianzhi's Mid-Autumn Post.
Yan Zhenqing's calligraphy is closely related to his life and personality. We can read books from his honest style. He is a man with integrity and a sense of justice, so we can refer to his historical background.
Look at Song Sijia, but don't look at Yukime