Peace of Gisors 1180
The Peace of Gisors of June 28, 1180 was a treaty between the French King Philip II August and the English King Henry II.
Philip, whom his father, King Ludwig VII. , Had recognized as his successor in 1179 , found himself exposed shortly afterwards, while the old king was still alive, to the influence of his mother's family, Adele von Champagne , which he hoped to break.
In the spring of 1180 - only 15 years old - he married 10-year-old Isabella von Hainaut , niece of the Count of Flanders , and not the intended member of the Count's family of Champagne, the Blois family , without the consent of his parents .
On June 28th of the same year he secured the protection and protection of the English king, who was clearly on his side, and refused to support Queen Adele, who was also antichambring .
The treaty was signed in Gisors , which lies on the border between the French and Norman Vexin and thus on the border of the domains of Louis VII and Henry II.
effect
With this treaty, after the death of his father on September 18, 1180 , Philip II did not gain any peace from his Count's opponents, who in 1181 even accepted his wife's father and uncle (Hainaut and Flanders) into their alliance. But Henry's signal that he would not stand against Philip (which was considered dishonorable during the minority) and will even protect him in case of need led to the Count of Champagne and then the Archbishop of Reims , whose brother is 1182 submitted ; when Isabella succeeded in removing her father from the alliance, Philip I was isolated from Flanders ( 1183 ). He offered resistance for two years, mainly because of the inheritance of his wife Mabile, who died in the same year until he submitted to the Peace of Boves in 1185 .