South Pyongan Province
Seongjae Yi Si-yeong (Chosŏn'gŭl: 이시영; Hanja: 李始榮, December 3, 1868 – April 19, 1953) was a Korean politician, independence activist, educator and neo-Confucianist scholar. He was Vice President of South Korea from 1948 to 1951. Yi resigned after the National Defense Corps incident of 1951. His nickname was Seongjae (성재; 省齋) or Sirimsanin (시림산인; 始林山人). Before the Japan–Korea Treaty of 1910, he had served for Joseon as the Governor of South Pyongan Province and the President of Hansung Law Court.