A Passau island in the Salzburg Flachgau: the canons' house of Mattsee on its lake, given to the church of Passau in 993, with its castle (about 1100) and estates.
It will stay Passau's until Salzburg buys it at the end of the 14th century.
Who he is
- Name
- Bishop Wolfger of Erla, through his officers
- Title
- Bishop of Passau (lord); his officers hold the place
- Since
- As bishop since 1191
- Born
- About 1140
- Family
- See the Passau realm record
- Confidence
- medium
de.wikipedia (Stift Mattsee; Mattsee): the house was founded about 770 by Duke Tassilo III, came to the church of Passau in 993 with Altötting, and has been a college of canons since about 1045; the castle goes back to about 1100. The Passau lordship lasted until it was sold to Salzburg in 1390-1398 (general reference, not checked in a fetched source).
Overlord
The bishop of Passau.
What it holds
- Mattsee castle (about 1100)
- The college of canons and its estates
- The lake fisheries
How it was acquired
993.
Allies and rivals
The archbishop of Salzburg all round; the Haunsberg lords and the Peilstein advocates of Michaelbeuern next door.
How things stand that morning
Held by the bishop of Passau.
Wealth
Estates and fisheries.
Military
One castle.
Threats
- Salzburg's wish to round off its land
Where the sources disagree
Evidence: The 993 gift and the castle are dated; the extent of the lordship is reconstructed.
On the map: Approximate; drawn as three modern municipalities round the lakes.
Primary sources for Passau (Wolfger)
Chronicles, registers, sagas and inscriptions written in or near 1200 that cover this entry. Each has its own page with editions, translations and where to read it.
- Annals of Schäftlarn and the Bavarian annals (12th and 13th centuries). Brief Bavarian annals. Read online
- The Austrian and Salzburg annals (kept in the 12th and 13th centuries, with continuations to the late 13th century). A family of monastic annals from Austria, Styria and Salzburg, printed together. Read online
- Bavarian monuments: the charters of the Bavarian monasteries and bishoprics (charters from the 8th century onward, published 1763 to 1916). The great charter series of Bavaria, arranged by monastery and bishopric. Read online
Sources and studies
Last revised 4 November 2026. Published 4 November 2026. Suggest a correction on the OMNIA Discord.