Thuringian Count's War

The Thuringian Counts' War (German: Thüringer Grafenkrieg), or Thuringian Counts' Feud (Thüringer Grafenfehde) was a conflict between several ancient aristocratic families and the House of Wettin for supremacy in Thuringia. The war lasted from 1342 to 1346. The conflict is also called by various other names in English sources including War of the Thuringian Counts and Thuringian Comital War.

In 1247, the last Thuringian landgrave from the House of the Ludovingians, Henry Raspe, died without a male heir. During the war of succession that followed, Henry the Illustrious, Margrave of Meissen, finally won the landgraviate for the House of Wettin, whilst the Hessian territories went to Henry I of Hesse and formed the new Landgraviate of Hesse. The grandson of Henry the Illustrious, Frederick I, the Brave, and his son, Frederick II, the Serious, tried to secure the suzerainty of the Wettins over Thuringia and thus fell inevitably into opposition with the other princes in the land.

On 1 September 1342, the various counts and lords of Thuringia of sealed a pact in Arnstadt which effectively allied them against Frederick the Serious. The parties to the alliance included the counts of Schwarzburg, Weimar-Orlamünde and Hohnstein and the advocates of Gera and Plauen Conflict broke out in October. The Electoral Mainz archbishop, Henry III of Virneburg, who was already in dispute with the citizens of Erfurt over city rights, supported the counts and so the citizens of Erfurt took the side of Frederick the Serious.

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