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Peter Yi Myŏng-sŏ
Korean martyr, catholic saint
SaintResearchedDocumented cause
Feast: 20 September (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
1820
Died
1866
Beatified
6 October 1968
unverified
Canonised
6 May 1984
unverified
Who they were
In the territory of Tiyen-Tiyou in Korea, Saints Peter Cho Hwa-so, father of a family, and five companions, martyrs, who, though tempted by the mandarin with promises and tortures to deny the Christian religion, held firm until they were beheaded.
Among those named is Saint Peter Yi Myŏng-sŏ, a father of a family.
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 13 December among the companions of Saint Peter Cho Hwa-so, beheaded in Korea, as a father of a family.
Connected on this site
- The Korean Martyrs Saint honoured together
Sources
- Roman Martyrology, 13 December (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q11818270 — dates, feast day and identifiers (CC0)
Checked against the sources listed on 22 September 2026. Corrections welcome.