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Agatha Yi So-sa
Catholic saint, one of the Korean Martyrs
SaintResearchedDocumented cause
Feast: 20 September (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
1784
Died
1839
Beatified
5 July 1925
unverified
Canonised
6 May 1984
unverified
Who they were
At Seoul in Korea, the holy martyrs Augustine Yi Kwang-hŏn, in whose house the Scriptures were read, Agatha Kim A-gi, mother of a family, who received baptism in prison, and seven companions, who were all beheaded together for their faith in Christ. Among those named is Saint Agatha Yi So-sa.
The miracles
The Roman Martyrology does not describe the miracles approved in the cause.
Why that counted as sanctity
The Roman Martyrology remembers her on 24 May among the companions of Augustine Yi Kwang-hŏn and Agatha Kim A-gi, beheaded together at Seoul.
Connected on this site
- Peter Yi Ho-yŏng Saint Brother or sister
- The Korean Martyrs Saint honoured together
- Agatha Kim A-gi Saint“At Seoul in Korea, the holy martyrs Augustine Yi Kwang-hŏn, in whose house the Scriptures were read, Agatha Kim A-gi, mother of a family, who received baptism in prison, and seven companions, who were all beheaded together for their faith in Christ.” — this site's research
Sources
- Roman Martyrology, 24 May (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q4260721 — dates, feast day and identifiers (CC0)
Checked against the sources listed on 22 September 2026. Corrections welcome.