Sacrificing a nephew, also known as Ji of Sacrificing a Nephew, was written by Yan Zhenqing in the first year (758). The draft traces back to the story that when Yan Jieqing, the magistrate of Changshan, took the side in the Anshi Rebellion, the loyal minister and the opposition rebelled, which led to the collapse of the father and son. He presided over justice and benevolent government.
"Yanshan Post" is 39 words. The experts of calligraphy and painting appraisal of the National Cultural Relics Appraisal Committee commented on this post: his large-character ink should be considered as the top grade. It is precisely because of this that this Mo Bao attracted the attention of many painters and collectors as soon as it appeared, eager to let it return to the motherland.
Fu Juan is a paper book with a length of 29.5 cm and a width of 192.6 cm. It was in the fourth year of Dade (AD 1300) when Zhao Jia was 47 years old that Zhao Meng's calligraphy style was fully displayed with roundness. Ni, a native of Yuan Dynasty, called this book "round and beautiful", and Zhao was the first calligrapher in Yuan Dynasty.