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Thallus of Laodicea
martyr at Laodicea in Syria
SaintFull write-upDate unknown
Feast: 11 March (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
—
unknown
Died
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unknown
Beatified
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not on record
Canonised
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not on record
Who they were
At Laodicea in Syria, Saints Trophimus and Thallus, martyrs, who, during the persecution of the emperor Diocletian, after many cruel torments obtained the crown of glory.
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 Roman Martyrology remembers him on 11 March as a martyr at Laodicea in Syria who, with Trophimus, was crowned after many cruel torments under Diocletian.
Sources
Checked against the sources listed on 22 September 2026. Corrections welcome.