|Battle of St. Quentin|
|Part of the Italian War of 1551-1559|
Map of Emmanuel Philibert, Duke of Savoy's Dutch campaign
Duchy of Savoy
|Kingdom of France|
|Commanders and leaders|
Ferrante I Gonzaga
Lamoral, Count of Egmont
Louis Gonzaga, Duke of Nevers|
Anne de Montmorency
7,000 English troops
|Casualties and losses|
|1,000||10,000 casualties (3,000 killed and 7,000 captured) or 14,000|
The Battle of Saint-Quentin of 1557, was a decisive engagement, during the Italian War of 1551-1559, between the Kingdom of France and the Habsburg empire at Saint-Quentin in Picardy. A Habsburg Spanish force under Duke Emmanuel Philibert of Savoy defeated a French army under the command of Duke Louis Gonzaga and Duke Anne de Montmorency.
The battle took place on the Feast Day of St. Lawrence 10 August. Philibert, with his English allies,[a][b] had placed St. Quentin under siege. Montmorency with a force of around 26,000 men marched to St. Quentin to relieve the city. Facing a force twice their size, Montmorency attempted to gain access to St. Quentin through a marsh, but a delayed French withdrawal allowed the Spanish to defeat the French and capture Montmorency.
After the victory over the French at St. Quentin, "the sight of the battlefield gave Philip a permanent distaste for war"; he declined to pursue his advantage, withdrawing to the Spanish Netherlands to the north, where he had been the Governor since 1555. The Treaty of Cateau-Cambresis ended the war two years later.
Being of a grave religious bent, Philip II was aware that 10 August is the Feast of St Lawrence, a Roman deacon who was roasted on a gridiron for his Christian beliefs. Hence, in commemoration of the great victory on St Lawrence's Day, Philip sent orders to Spain that a great palace in the shape of a gridiron should be built in the Guadarrama Mountains northwest of Madrid. Known as El Escorial, it was finally completed in 1584.