Robert Grissold
English martyr
Who they were
Robert Grissold was a layman who was put to death at Warwick on 16 July 1604, under James I, together with the priest John Sugar.
In 1913 the Catholic Encyclopedia counted him among the English martyrs whose cause had been admitted at Rome, who were then styled Venerable.
The miracles
As a martyr he was raised to the altars without a miracle.
Why that counted as sanctity
One of the English martyrs who died for the Catholic faith under James I.
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
- John Sugar Blessed“Arrested in 1603 with Robert Grissold, a layman who served him, he was condemned after a year in prison for being a priest and executed at Warwick on 16 July 1604.” — this site's research
- Catholic Encyclopedia (1913), via New Advent - English Confessors and Martyrs (1534-1729)
- Roman Martyrology, 16 July (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q7344975 — dates, feast day and identifiers (CC0)
- English Wikipedia — Robert Grissold (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.