No likeness on file
Alexius U Se-yŏng
koran martyr, catholic saint
SaintResearchedDocumented cause
Feast: 20 September (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
1845
Died
1866
Beatified
6 October 1968
unverified
Canonised
6 May 1984
unverified
Who they were
In the place called Sai-Nam-Hte in Korea, Saints Mark Chŏng Ŭi-bae, catechist, and Alexius U Se-yŏng, martyrs, who for their Christian faith were insulted by their own relatives…
The miracles
The Roman Martyrology does not describe the miracles approved in the cause.
Why that counted as sanctity
The Roman Martyrology remembers him on 11 March as a martyr in Korea, insulted by his own relatives for his Christian faith.
Connected on this site
- The Korean Martyrs Saint honoured together
- Mark Chŏng Ŭi-bae Saint“In the place called Sai-Nam-Hte in Korea, Saints Mark Chŏng Ŭi-bae, catechist, and Alexius U Se-yŏng, martyrs, who for their Christian faith were insulted by their own relatives…” — this site's research
Sources
- Roman Martyrology, 11 March (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q9146987 — dates, feast day and identifiers (CC0)
Checked against the sources listed on 22 September 2026. Corrections welcome.