Siege of Turin (1640)

Siege of Turin(1640)
Part of the Piedmontese Civil War
Siege of Turin’s Citadel (engraving by M. Merian/C. Cappi)
Date 22 May – 20 September 1640 Location Turin (present-day Italy) 45°4′0.01″N 7°42′0.00″E / 45.0666694°N 7.7000000°E / 45.0666694; 7.7000000 Result Franco-Piedmontese victory
Belligerents
Kingdom of France Regency faction	Spain Prince Thomas faction
Commanders and leaders
Count of Harcourt Vicomte de Turenne Princess Christine	Marquis of Leganés Prince Thomas
Strength
10,000[1]	12,000 (Turin)[1] 15,000 (Relief force)[1]
Casualties and losses
4,000[2]	9,000[2]

The 1640 siege of Turin (22 May–20 September 1640) was a major action in two distinct wars: the Franco-Spanish War (1635–59) and the Piedmontese Civil War. When Thomas Francis, Prince of Carignano and his Piedmontese faction captured Turin, the French garrison supporting the Regent Christine Marie of France retired within the citadel and continued to resist. A Franco-Piedmontese army led by Henri de Lorraine, count of Harcourt and Henri de la Tour d'Auvergne, Vicomte de Turenne invested the forces under Prince Thomas within the city. Finally, a Spanish army under Diego Felipez de Guzmán, Marquis of Leganés appeared and encircled the French besiegers. In this triple siege, the Spanish army surrounded the French army which surrounded Prince Thomas' Piedmontese who surrounded the French controlled citadel. In the end the French prevailed; Prince Thomas surrendered on terms and was allowed to march his troops elsewhere, leaving Turin in French control. Turin is a major city in the northwest part of modern-day Italy.