The War of the Cow (1272–78), in French Guerre de la Vache, was a conflict in the Holy Roman Empire between the Prince-Bishopric of Liège under Bishop John of Enghien and the Marquisate of Namur under Marquis Guy of Dampierre. What began as a dispute over stolen property between a peasant from one jurisdiction and a burgess from another became a major regional conflict requiring the arbitration of King Philip III of France, who ordered the restoration of the status quo ante bellum in 1278.