Four Great Teachers of National Learning #國學四大導師: Liang Qichao #梁啟超 (1873–1929), Wang Guowei #王國維 (1877–1927), Chen Yinke #陳寅恪 (1890–1969), Zhao Yuanren #趙元任 (1892–1982)

Why does only Chen Yinke appear on all three?

Lmk if you know other #listsofhistorians.