Du Fu and Du Mu. According to Baidu Encyclopedia, most elementary schools in Nanjing refer to Du Fu and Du Mu, and "Dadu" and "Poet Saint" refer to Du Fu in Tang Dynasty. Du Mu is called "Little Du", which is different from Du Fu's "Dadu" and is also called "Little Du Li" with Li Shangyin. Du Fu, whose real name is Zi Mei, is a great realistic poet in Tang Dynasty, Shao Ling Ye Lao and Du Mu, whose real name is Mu Zhi, a writer in Tang Dynasty and a scholar of Yamato.