Bouillon, Belgium - August 2021 Walking Tour

The little city of Bouillon is located in the province of Luxembourg in the Ardennes, Belgium, in a sharp bend of the river Semois, surrounded by lush forest. The municipality covers 149.09 km² and has some 5,477 inhabitants.

In the Middle Ages Bouillon was a lordship within the Duchy of Lower Lorraine and the principal seat of the Ardennes-Bouillon dynasty in the 10th and 11th century. In the 11th century they dominated the area, and held the ducal title along with many other titles in the region. Bouillon was the location of the ducal mint and the dominant urban concentration in the dukes' possession.
The fortification of Bouillon Castle was, along with the County of Verdun, the core of the possessions of the Ardennes-Bouillon dynasty, and their combined territory was a complex mixture of fiefs, allodial land and other hereditary rights throughout the area.

The most famous of the Lords of Bouillon was Godfrey of Bouillon, a leader of the First Crusade and the first ruler of the Kingdom of Jerusalem. He sold the Bouillon estate to the Prince-Bishopric of Liège. The prince-bishops started to call themselves dukes of Bouillon, and the town emerged as the capital of a sovereign duchy by 1678, when it was captured from the prince-bishopric by the French army and given to the La Tour d'Auvergne family. The duchy was prized for its strategic location as "the key to the Ardennes" (as Vauban called it) and hence to France itself. It remained a quasi-independent protectorate, like Orange and Monaco, until 1795, when the Republican Army annexed it to France.

After the defeat of Napoleon Bonaparte, the city was given to the Netherlands in the 1815 Treaty of Paris. It has been part of Belgium since the Revolution of 1830.