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William of St-Thierry
French theologian and abbot
Who they were
William, of a noble family of Liège, became a Benedictine at Reims and in 1119 Abbot of St-Thierry. He was a close lifelong friend of St Bernard.
He longed to join Bernard at Clairvaux, but at last resigned and became a Cistercian at Signy, where amid almost constant suffering he gave himself to prayer and writing. He died there about 1148.
The miracles
The Catholic Encyclopedia does not describe his cause.
Why that counted as sanctity
A mystic and friend of St Bernard.
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.
- Catholic Encyclopedia (1913), via New Advent - William of St-Thierry
- Wikidata Q1628129 — dates, feast day and identifiers (CC0)
- English Wikipedia — William of Saint-Thierry (CC BY-SA)
Checked against the sources listed on 21 September 2026. Corrections welcome.