John I, also called John the Victorious was Duke of Brabant (1267–1294), Lothier and Limburg (1288–1294). During the 13th century, John I was venerated as a folk hero. He has been painted as the perfect model of a brave, adventurous and chivalrous feudal prince.

The Duchy of Limburg or Limbourg was an imperial estate of the Holy Roman Empire. Much of the area of the duchy is today located within Liège Province of Belgium, with a small portion in the municipality of Voeren, an exclave of the neighbouring Limburg Province. Its chief town was Limbourg-sur-Vesdre, in today's Liège Province.