Park Won-soon
Park Won-soon ( ; March 26 , 1956July 9 , 2020 ) was a South Korean politician , philanthropist , activist , and lawyer who served as the longest-serving mayor of Seoul from 2011 until his death in July 2020 . 
<triplet> Park Won-soon <subj> mayor of Seoul <obj> position held <triplet> mayor of Seoul <subj> Park Won-soon <obj> officeholder