Alexius Gim Si-u was a Korean Catholic blessed who lived from 1782 to 1815. Born into a noble family in Byeolam, he embraced the Christian faith during his youth. Despite living with a disability, he remained steadfast in his religious convictions. In 1815, when authorities began arresting most Catholics from his village, he voluntarily requested to be imprisoned alongside his community members. He subsequently died in a prison in Daegu due to the hardships he endured while incarcerated.
Life and death
Born in 1782, Alexius belonged to a noble lineage. His commitment to his faith was demonstrated when he chose to face arrest rather than avoid the persecution facing his fellow villagers. Following his decision to join the imprisoned Catholics, he passed away in Daegu in 1815. His death is recognized as martyrdom because of the suffering he experienced during his imprisonment.
Veneration
He is honored as a blessed in the Catholic Church. In 2014, Pope Francis officially recognized his martyrdom and beatified him during a visit to South Korea. He is commemorated alongside 124 other Korean martyrs, with his feast day observed annually on May 31.