border was created commonly known nowadays as Old Catalonia (which would consist of the counties County of Barcelona, Ausona, County of Pallars, County of Rosselló, County of Empúries, County of Cerdanya and County of Urgell) which faced Muslim raids but resisted any kind of settlement from them. "New Catalonia" and its Native peoples were fully in control of the Arab invaders for around a century. The Franks on the other side of the Pyrenees held back the main Muslim raiding army which had penetrated virtually unchallenged as far as central France at the Battle of Tours in 732. Frankish suzerainty was then extended over much of present-day Catalonia. Larger wars with the Muslims began in the March of Barcelona which led to the beginnings of the Reconquista by Catalan forces over most of Catalonia by the year 801. As the border between Muslim and Frankish realms stabilized, Barcelona would become an important center for Christian forces in the Iberian Peninsula. In 1137, the County of Barcelona entered a dynastic union with the kingdom of Aragon to form what modern historians call the Crown of Aragon in the so-called Reconquista. This allowed the reclamation of Muslim-dominated lands, eventually conquering the kingdoms of Valencia and Majorca (the Balearic Islands). From the 14th century, the territory of the Catalan counties started to be called the Principality of Catalonia. In the last quarter of the 15th century, the marriage of Isabella I of Castile and Ferdinand II of Aragon led to the dynastic union of the Crown of Aragón with the Crown of Castille, in which each of the constitutive territories kept its own laws, power structures, borders and monetary systems. Regional unrest led to conflicts such as the Revolt of the Germanies in Valencia and Majorca, and the 1640 revolt in Catalonia known as the Reapers' War. This latter conflict embroiled Spain in a larger war with France as many Catalan nobles allied themselves with Louis XIII. The war continued until 1659 and ended with the Peace of the Pyrenees, which effectively partitioned Catalonia as the northern strip of the March came under French rule, while the rest remained under Spanish hegemony. The Catalan government took sides with the Habsburg pretender against the Bourbon one during the War of the Spanish Succession that started in 1705 and ended in 1714. The Catalan failure to defend the continuation of Habsburg rule in Spain culminated