General Cao Kun was a Chinese warlord and politician, who served as the President of the Republic of China from 1923 to 1924, as well as the military leader of the Zhili clique in the Beiyang Army; he also served as a trustee of the Catholic University of Peking.

Yuan Shikai was a Chinese general and statesman who served as the second provisional president of the Republic of China, head of the Beiyang government from 1912 to 1916 and Emperor of China from 1915 to 1916. A major political figure during the late Qing dynasty, he spearheaded a number of major modernisation programs and reforms and played a decisive role in securing the abdication of the Xuantong Emperor in 1912, which marked the collapse of the Qing monarchy and the end of imperial rule in China.