Laurent-Joseph-Marius Imbert

Laurent-Joseph-Marius Imbert (Born: 23 March 1796 – Died: 21 September 1839), affectionately known in Korea as Bishop Laurentius Bum Sehyeong () was a Roman Catholic French bishop in Asia. He was most notable for his Christian missionary work among the Koreans, he was appointed by Pope Gregory XVI in August 1836 when first Bishop Barthélemy Bruguière died in Manchuria.

Eventually, he was executed in the Kingdom of Joseon for his Catholic faith; it is estimated that 8,000 to 10,000 were killed for their faith in 19th-century Korea—the Korean Martyrs. 103 of them, including Imbert, were canonized by the Catholic Church as saints in 1984. His feast day is 21 September, and he is also venerated with the rest of the 103 Korean martyrs on 20 September. Provided by Wikipedia