Mafalda of Portugal
Portuguese infanta, Castilian queen consort, and nun
Feast: 1 May (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Who they were
At Arouca in Portugal, Blessed Mafalda, virgin, who, daughter of King Sancho I, her marriage having been set aside as invalid, became a nun and introduced the Cistercian reform into her monastery.
The miracles
The Roman Martyrology does not describe the miracles approved in the cause.
Why that counted as sanctity
The Roman Martyrology remembers her on 1 May as a daughter of King Sancho I who became a nun at Arouca and brought in the Cistercian reform.
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.
Connected on this site
- Sancha of Portugal Blessed Brother or sister
- Theresa of Portugal Blessed Brother or sister
- Roman Martyrology, 1 May (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q576323 — dates, feast day and identifiers (CC0)
- English Wikipedia — Mafalda of Portugal (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.