During the Nine Years' War, the French Royal Army carried out a bombardment of Brussels from August 13–15, 1695. Led by King Louis XIV and the Duke of Villeroi, French forces bombarded the city in an attempt to divert Grand Alliance troops from reinforcing the concurrent siege of Namur. The bombardment ultimately proved to be the most destructive event in the history of Brussels, destroying a third of the buildings in the city, including the Grand-Place/Grote Markt (Brussels' main square).
After the bombardment, reconstruction efforts over the following years profoundly changed the appearance of the city and left numerous traces still visible today. The French attempt to divert the Grand Alliance was ultimately unsuccessful, though Louis XIV's reputation suffered for his involvement in the destruction of the city.
The 17th century, called the 'Great Century' by the French, was anything but great for the inhabitants of the Southern Netherlands. During this period, this region went through a succession of wars and destruction, exacerbated by large armies traversing the region at the whim of the great powers. In 1695, nearly forty years after the Battle of the Dunes of 1658, France began its policy of territorial expansion. This expansion resulted in the gradual annexation of Spanish possessions to France's north. Wars were fought and alliances made and broken, and fortresses continuously changed hands. The Nine Years' War had been raging since 1688. Opposing France was a large European coalition, the Grand Alliance, with its head as William III of Orange, leader of the Netherlands, and soon to be king of England. Alongside William stood Spain, Sweden, the Holy Roman Empire as well as several electors, among them Maximilian II Emanuel, Elector of Bavaria, governor of the Spanish Netherlands.
In July 1695, the city of Namur, occupied for three years by the French, was besieged by King William III at the head of an allied army. After the death of the Duke of Luxembourg, the French army was led by the Duke of Villeroi, a mediocre strategist but close to the king. The king, irritated at the recent turn of events, urged Villeroi to destroy Bruges or Ghent in a surprise attack. Villeroi, eager to please the king, instead suggested that bombarding Brussels would have more of an effect in drawing the enemy to a place in which the French could attack them strategically.
At the end of July, Villeroi sent the king a request for supplies, compiled by his master of artillery. He evaluated that 12 cannons, 25 mortars, 4000 cannonballs, 5000 explosive shells, a large amount of gunpowder, lead shot, grenades and fuses, and 900 wagons for transport would be necessary. In addition, there would need to be a baggage train capable of supplying arms and provisions to an army of nearly 70,000 men. The supplies and troops were largely taken out of French garrisons and strongholds in the region, and on August 7, Villeroi left Mons for Brussels with a baggage train of nearly 1500 carts.
These maneuvers did not pass unnoticed, as Villeroi let his intentions be known with the goal of worrying the allied armies besieging Namur. On August 3, a truce was declared in the siege in order to treat the wounded and restock the citadel. After six days, the siege resumed, with both William III and Maximilian II Emanuel standing their ground. Only the small army of the Prince of Vaudemont, near the city of Ghent, was able to achieve anything, by controlling roads leading to Brussels. Having only 15,000 men, however, he was forced to withdraw faced with Villeroi's much larger force. The French army arrived in the vicinity of Brussels on August 11, and installed themselves on the high ground to the west of the city. Brussels was not strongly defended, as its walls offered no defense, despite improvements made by the Spanish in the previous century. Two entrenchments in front of Flanders Gate and Anderlecht Gate were easily taken by the French, who then installed their artillery nearby.
On August 13 Villeroi sent a letter to Philippe François de Berghes, the military governor of Brussels. Because hoping to draw the allied armies away from Namur could not reasonably be used as justification for an attack on the civilian population of a relatively defenseless city, Villeroi used the pretext of the bombardment being a reprisal for the bombardment of French cities along the English Channel by the English fleet. Within six hours, the letter announcing the bombardment affirmed this, in addition to asking the location of Max Emanuel's wife Theresa Kunegunda, the daughter of Polish King John III Sobieski, neutral in the conflict, as the King of France had forbidden that she be fired upon. The Prince of Berghes asked for a 24-hour extension to refer the request to stop bombarding the French coastal cities to William of Orange. He also asked Villeroi to consider the injustice of taking vengeance on Brussels, when the bombardments of French cities were entirely the fault of the King of England. Villeroi scoffed at this, saying the king "... has not given me the authority to enter into a treaty with the Prince of Orange."
The French batteries began to fire just before seven in the evening. The first incendiary bombs and shells hit several houses, which caught fire, starting a fire which spread rapidly amongst the narrow alleys, which were frequently lined by houses and workshops which were partially made of wood.
All alone, three defensive batteries installed on the western ramparts of the city attempted to return fire, but they were short of gunpowder, ammunition and gunners. The few salvos of cannonballs, and later cobblestones, that the Brussels militias were able to get off were nonetheless able to kill around 35 French soldiers, but were not able to slow down the bombardment.
The city's authorities believed until the last minute that the worst could be avoided, and as such urged the populace to stay home with buckets of water, so as to be prepared to extinguish any fire and prevent its spread. So feeble a means of stopping the fire quickly proved useless, and the panicked residents tried to save their most precious belongings and fled to the heights of the city, east of the Senne valley. A helpless crowd watched the fire from the park at the ducal palace. By the middle of the night, the entire heart of the city was aflame, including the stone buildings of the Grand-Place and its surroundings, the Town Hall, abandoned by the authorities and whose spire was being used as a target by the French artillery, the Breadhouse, the Recollet convent and St. Nicholas' Church, whose bell fell on and crushed the neighbouring houses. Max Emmanuel, who had hastily returned from Namur with several troops, tried in vain to organize an effective resistance against the inferno and to maintain order.
On the morning of August 14, the barrage stopped for long enough for the French to resupply their batteries. Rumours that the French would be choosing new targets quickly spread, and in the confusion, the residents transported their belongings to the parts of the city which had already been hit. All of these were destroyed when the bombardment resumed.
When the bombardment resumed, the city was hammered even harder across an even larger area: on the north, towards the Mint and the Dominican convent, where large quantities of furniture, heirlooms, works of art and family archives had been stored and would soon be lost underneath the rubble. To the east, fear spread that the Church of St. Michael and St. Gudula (now Brussels' cathedral) would be destroyed, and its riches were evacuated. The area around what is now the Brussels-Central railway station and the Chapel of Mary Magdalene of Brussels were ablaze, and the Recollet convent, already hit the night before, was near completely destroyed. Destruction then came to the Saint John Hospital, and in the night, to the Church of the Chapel. By the morning of August 15, the entire city centre was an enormous brazier. To save the surrounding city by stopping the spread of the fire, Max Emmanuel used gunpowder to demolish numerous buildings to form a giant firebreak around the affected area, despite strong opposition by the buildings' owners.