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Hyacinth of Amasra
Christian martyr
SaintFull write-upDate unknown
Feast: 18 July (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
—
unknown
Died
—
unknown
Beatified
—
not on record
Canonised
—
not on record
Who they were
At Amastris in Paphlagonia, St. Hyacinth, martyr, who suffered much under the prefect Castritius, and died in prison.
The miracles
There was never a formal cause: he has been honoured as a saint since before the Church's formal processes began.
Why that counted as sanctity
The Dominican Martyrology (1955) remembers him on 17 July.
Sources
- The Martyrology of the Order of Friars Preachers (tr. W. R. Bonniwell OP, 1955), 17 July
- Wikidata Q119776914 — dates, feast day and identifiers (CC0)
Checked against the sources listed on 22 September 2026. Corrections welcome.