Ye was a prominent government minister at the time of Eulsa Treaty of 1905, and was the most outspoken supporter of the pact which made the Korean Empire a protectorate of the Empire of Japan, thus stripping it of its diplomatic sovereignty. The treaty was signed in defiance of Korean Emperor Gojong, and he is thus accounted to be the chief of five ministers who were later denounced as Five Eulsa Traitors in Korea. Under Japanese Resident-GeneralItō Hirobumi, Ye was promoted to the post of prime minister from 1906 to 1910. Ye was instrumental in forcing Emperor Gojong to abdicate in 1907, after Emperor Gojong tried to publicly denounce the Eulsa Treaty at the second international Hague Peace Convention. In 1907 Ye was also chief amongst the seven ministers who supported the Japan–Korea Treaty of 1907, which further placed the domestic affairs of Korea under Japan's control, thus completing the colonialisation of Korea by Japan. Ye is therefore also listed in Korea amongst the Seven Jeongmi Traitors. In 1909, he was seriously injured in an assassination attempt by the "Five Eulsa Traitors Assassination Group".
In 1910, Ye signed the Japan-Korea Annexation Treaty by which Japan took full control over Korea, while Korean Emperor Sunjong refused to sign. For his cooperation with the Japanese, Ye is also listed in Korea amongst the eight Gyeongsul Traitors. He was rewarded with a peerage in the Japanese kazoku system, becoming a hakushaku, in 1910, which was raised to the title of kōshaku in 1921. He died in 1926.
Legacy
After the independence of Korea at the end of World War II, the grave of Ye was dug up and his remains suffered the posthumous dismemberment, which is often considered to be the most disgraceful punishment in Confucian ideology. Ye's name has become a byword for "traitor" in contemporary South Korea. However, Seo Jae-pil's Dongnip Sinmun never wrote a single line of criticism against him. The South Korean Special law to redeem pro-Japanese collaborators' property was enacted in 2005 and the committee confiscated the property of the descendants of nine people that had collaborated with Japan when Korea was annexed by Japan in August 1910. Ye is one of those heading the list.
Ye is portrayed by Woo Sang-jeon in the 2015 film Assassination.
Both Ye Wanyong as well as Lee Wan-ik, a fictional pro-Japanese Korean Minister that resembles Ye in name and action, are characters in the South Korean television series Mr. Sunshine.
