Rebellions broke out in France and Anjou between 1111 and 1113, and Henry crossed into Normandy to support his nephew, Count Theobald II, Count of Champagne, who had sided against Louis in the uprising.; In a bid to isolate Louis diplomatically, Henry betrothed his young son, William Adelin, to Fulk's daughter Matilda, and married his illegitimate daughter Matilda to Duke Conan III of Brittany, creating alliances with Anjou and Brittany respectively. Louis backed down and in March 1113 met with Henry near Gisors to agree a peace settlement, giving Henry the disputed fortresses and confirming Henry's overlordship of Maine, Bellême and Brittany.
Rebellions broke out in France and Anjou between 1111 and 1113, and Henry crossed into Normandy to support his nephew, Count Theobald II, Count of Champagne, who had sided against Louis in the uprising; In a bid to isolate Louis diplomatically, Henry betrothed his young son, William Adelin, to Fulk's daughter Matilda, and married his illegitimate daughter Matilda to Duke Conan III of Brittany, creating alliances with Anjou and Brittany respectively. Louis backed down and in March 1113 met with Henry near Gisors to agree a peace settlement, giving Henry the disputed fortresses and confirming Henry's overlordship of Maine, Bellême and Brittany.