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John Baptist Chŏn Chang-un
Korean martyr, catholic saint
SaintResearchedDocumented cause
Feast: 20 September (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
1811
Died
1866
Beatified
6 October 1968
unverified
Canonised
6 May 1984
unverified
Who they were
In the village of Nei-Ko-Ri in Korea, Saints Peter Ch'oe Hyong and John Baptist Chŏn Chang-un, martyrs: fathers of families, they administered baptism and printed Christian books; tortured for this, they persevered in the faith with such constancy as to arouse the admiration of their persecutors.
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 9 March as a father of a family and martyr in Korea who baptised and printed Christian books.
Connected on this site
- The Korean Martyrs Saint honoured together
Sources
- Roman Martyrology, 9 March (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q11717203 — dates, feast day and identifiers (CC0)
Checked against the sources listed on 22 September 2026. Corrections welcome.