Treaty of Troyes (1564)

The Treaty of Troyes of 1564 was an agreement between the rivaling Kingdoms of England and France after the ejection of English forces from France in 1563 which recognized French ownership of Calais in return of France's payment to England 120,000 crowns.

Background
On 7 January 1558, during the reign of queen Mary I of England, king Henry II of France sent forces led by Francis, Duke of Guise, who laid siege to Calais. When the French attacked, they were able to surprise the English at the critical strongpoint of Fort Nieulay and the sluice gates, which could have flooded the attackers, remained unopened. Thus Calais was regained by the French.

In spite of this, Queen Elizabeth I of England, Mary's half sister, revived English claims on Calais and took the French port of Le Havre in 1561 with support of the Hugenots, but the French troops ejected the English troops from France, and subsequently in 1564, an agreement between England and France that England recognizes French ownership of Calais, and in return France pays England 120,000 crowns was reached.