No likeness on file
Justina of Mainz
martyr at Mainz, sister of Saint Aureus
SaintFull write-upDate unknown
Feast: 16 June (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
—
unknown
Died
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unknown
Beatified
—
not on record
Canonised
—
not on record
Who they were
At Mainz in Belgic Gaul, now in Germany, Saints Aureus, bishop, Justina, his sister, and companions, martyrs, who tradition says were slaughtered by the pagan Huns while they were celebrating the Eucharist.
The miracles
There was never a formal cause: she has been honoured as a saint since before the Church's formal processes began.
Why that counted as sanctity
The Roman Martyrology remembers her on 16 June as the sister of Bishop Saint Aureus of Mainz, killed with him by the pagan Huns while they were celebrating the Eucharist.
Sources
Checked against the sources listed on 22 September 2026. Corrections welcome.