Adalbert
French saint, archbishop and missionary (c.910–981)
Feast: 20 June (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Who they were
Adalbert, probably from Lorraine, was a German monk consecrated bishop and sent in 961, at Princess Olga's request to Emperor Otto, to bring Christianity to Russia. The missionaries were attacked on the way and some priests were killed; Adalbert barely escaped.
Back in Germany he became Abbot of Weissenburg and then first Archbishop of Magdeburg, a see created for the Slavs, and as their metropolitan established the sees of Naumburg, Meissen, Merseburg, Brandenburg, Havelberg and Posen. He is called the Apostle of the Slavs. He died in 981.
The miracles
There was never a formal cause: he has been honoured as a saint since before the Church's formal processes began.
Why that counted as sanctity
A missionary bishop who risked his life for the Slavs and built up their Church.
Connected on this site
- Adalbert of Prague Saint Pupil
- Catholic Encyclopedia (1913), via New Advent - St. Adalbert (Archbishop of Magdeburg)
- Wikidata Q77394 — dates, feast day and identifiers (CC0)
- English Wikipedia — Adalbert of Magdeburg (CC BY-SA)
Checked against the sources listed on 21 September 2026. Corrections welcome.