In the 7th century, the Tang dynasty established hegemony in China. Their second Emperor Taizong esteemed Wang Xizhi's calligraphic texts and this popularity influenced Japanese calligraphers. All of the original texts written by Wang Xizhi have been lost, and copies such as "Gakki-ron" written by the Empress Kōmyō are highly regarded as important sources for Wang Xizhi's style. However Wang's influence can barely be overstated, in particular for the "wayō" style unique to Japan: "Even today, there is something about Japanese calligraphy that retains the unchanged flavour of Wang Xizhi's style".