Landsberg castle on the slopes of the Koralpe is the seat of Salzburg's western Styrian estates and of a court district running from Deutschlandsberg to the Carinthian border, with an immunity probably of 1178.
Its first stone tower was raised under Archbishop Konrad I; the castle is named in 1185 and 1188.
Who he is
- Name
- A burgrave of the Lonsberg ministerial family (name in 1200 not pinned)
- Title
- Burgrave of Landsberg for the archbishop
- Since
- The family held the castle from the first half of the 12th century; a Friedrich of Lonsberch was burgrave in 1153
- Born
- Not pinned
- Family
- The Lonsberger, Salzburg ministerials named after the castle.
- Confidence
- low
de.wikipedia (Burg Deutschlandsberg).
Overlord
The archbishop of Salzburg.
What it holds
- Landsberg castle (named 1185 and 1188)
- The court district (Landgericht) from Deutschlandsberg to the Koralpe
- Salzburg's estates in western Styria
How it was acquired
Otto I's gift to Salzburg about 970.
Allies and rivals
The Styrian duke and his ministerials round Graz; the Carinthian border.
How things stand that morning
Held by the burgraves for the archbishop.
Wealth
Estates, forest and the court's dues.
Military
One strong castle.
Threats
- Styrian encroachment
Where the sources disagree
Evidence: Castle and burgrave of 1153 are dated; the holder in 1200 is not.
On the map: The court district reached the Koralpe; drawn only round the castle.
Primary sources for Salzburg (Adalbert III)
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.