In The Plantagenets the author Dan Jones wrote:
In 1156 Henry II was forced to leave England to deal with a rebellion in Anjou led by his younger brother Geoffrey, who believed that under the term of their father's will, Henry's accession as king of England ought to have triggered the handover of Anjou, Maine, and Touraine to Geoffrey.
By the Treaty of Boves and later Gisor ,Philippe-Auguste acquired territory in Picardy ,the French king was plotting to isolate the Counts of Champagne and FlandersKing Henry II of England and King Philip of France signed the Treaty of Gisors.
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In June 1180, King Henry II of England and Philip Augustus met under the elm of Gisors, where they signed the treaty of Gisors Stock Photo - Alamy
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