Prince-bishops · Bishopric of Halberstadt · as at first light, 1 January 1200

Halberstadt

The bishop of Halberstadt is lord of his cathedral city and of a chain of castles and market towns in the northern Harz foreland, facing the Welf heartland around Brunswick.

The city is still recovering from its sack by Henry the Lion in 1179. The see is a Staufen bulwark on the Welf frontier, but a small one.

Who holds it

Name
Gardolf (of Harbke)
Title
Bishop of Halberstadt
Since
1193 (month not pinned)
Confidence
medium

Catholic-Hierarchy gives him as Gardolf of Harbke, a noble family from the Börde west of Magdeburg. Little more is in the sources consulted beyond the campaign notes (Staufen, at the Magdeburg Christmas court of 1199). He dies on 21 August 1201.

What it holds

  • Halberstadt: city lordship, with the bishop's Petershof (built by Burchard I, 1036-1059), market and mint; sacked by Henry the Lion in 1179
  • Hornburg: border castle on the road from Halberstadt to Brunswick and Hildesheim, the bishops' since at least 994; devastated by Henry the Lion in 1179 and rebuilt at the emperor's order
  • Gröningen, Osterwieck, Kroppenstedt, Wegeleben and Schwanebeck: castles and market places of the church that formed the later core of the bishopric (their status on 1 January 1200 is not individually pinned)
  • Tolls, comital rights and monastic lordships gathered under the bishops of the 11th and early 12th centuries
  • Diocesan rights from the Oker to the Saale; the eastern part was lost long ago to Magdeburg

How it was acquired

Royal grants of the 10th and 11th centuries (Hornburg by 994); comital rights and tolls under Bishops Branthog, Burchard I, Burchard II and Reinhard (1023-1123); recovery after Henry the Lion's fall in 1180. Aschersleben came only in 1315.

How things stand that morning

Gardolf holds his city and castles and is on Philip's side; Halberstadt sits on the front line with the Welf lands.

Wealth

Market and mint at Halberstadt; the grain lands of the northern Harz foreland; tolls on the Brunswick road at Hornburg.

Threats

  • Welf raids from Brunswick, as in 1179
  • A vacancy on Gardolf's death in August 1201

Advocates and rivals

The Welfs at Brunswick, whose father burned the city in 1179; the counts of Regenstein and Blankenburg in the Harz (not pinned for 1200); the archbishop of Magdeburg as metropolitan and fellow Staufen partisan.

Places of note

  • Hornburg: Border castle against Brunswick, rebuilt after 1179

Where the sources disagree

Evidence: The holder is firm. The online sources consulted say little about the bishop's temporal holdings before the 14th century; the castle towns are drawn from the bishopric's long-standing core, not from a 1200 inventory.

On the map: Scattered castle districts, not a closed territory; the later Hochstift took shape in the 13th and 14th centuries.

Primary sources for Halberstadt

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.

Sources and studies

  1. Bishop Gardolf von Harbke (Catholic-Hierarchy)
  2. Hornburg (en.wikipedia)
  3. Prince-Bishopric of Halberstadt (en.wikipedia)
  4. Hochstift Halberstadt (de.wikipedia)
  5. Halberstadt, Bf.e von (Höfe und Residenzen im spätmittelalterlichen Reich)

Last revised 4 November 2026. Published 4 November 2026. Suggest a correction on the OMNIA Discord.