There are not many calligraphy materials handed down by Wu Zetian. There are inscriptions on Jianfu Temple Monument and Chongfu Temple Monument, and only the inscription on Prince Sage Monument written by Wu Zetian and engraved by Shu Dan. This tablet was carved in June of the second year of Jian 'an of Emperor Wu of Zhou Dynasty (AD 699) and now exists in Xianjun Temple in Jianshan, Yanshi County, Henan Province. * * * 34 lines of cursive script with 66 words each. There is a flying white writing board. The tablet is engraved with Wu Zetian's poem "Wandering Immortals", which was written by Wu Zetian at the age of 76. The text language of Immortal Monument to the Prince is fluent, magnificent and charming, which makes people fascinated, but compared with calligraphy, the book is better than the text! Han's Graphite Engraving said: "There are six Chinese characters, a flying white book and a bird-shaped tablet.". The flying white book has not been handed down for a long time, and it only has ears. "
(I hope it will help you and be adopted ~ ~ ~)