In November 1511 Ferdinand and his son-in-law Henry VIII of England signed the Treaty of Westminster, pledging mutual aid between the two against France. Earlier that year, Ferdinand had conquered the southern half of the Kingdom of Navarre, which was ruled by a French nobleman, and annexed it to Spain. At this point to reinforce his claim to the kingdom, Ferdinand remarried with the much younger Germaine of Foix (1490–1538), a granddaughter of Queen Leonor of Navarre. The Holy League was generally successful in Italy, as well, driving the French from Milan, which was restored to its Sforza dukes by the peace treaty in 1513. The French were successful in reconquering Milan two years later, however.