Frederick of Hallum
Dutch Abbot
Feast: 3 March (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Who they were
In Frisia, in the territory of present-day Holland, Blessed Frederick, priest, first parish priest in the town of Hallum, then abbot of the Premonstratensian monastery of Mariengaarde.
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 3 March as a priest, parish priest of Hallum and then abbot of the Premonstratensian monastery of Mariengaarde.
The cause
The cause continues. No postulation address is published here yet. Favours received through this person’s intercession, and offers of help, are best sent to the religious order or congregation they belonged to, or to the diocese where the cause was opened; either will pass them to the postulation.
- Roman Martyrology, 3 March (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q2341775 — dates, feast day and identifiers (CC0)
- English Wikipedia — Frederick of Hallum (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.