O Yun-gyeom was a scholar-official and Prime Minister of the Joseon Dynasty Korea.
He was also diplomat and ambassador, representing Joseon interests in the 2nd Edo period diplomatic mission to the Tokugawa shogunate in Japan.
"O Yun-gyeom." Biographies.net. STANDS4 LLC, 2019. Web. 19 Jan. 2019. <https://www.biographies.net/people/en/o_yungyom>.