Bourbon claim to the Spanish throne monarchs of France and Spain, therefore starting the War of the Spanish Succession. In this article, the Bourbon claim to the Spanish Crown and its origins are explained in detail. What became parts of northern Spain and southern France had strong connections going back hundreds of years. Some dynasties that ruled in Spain had origins going back to the Frankish empire, for example, the rulers of the County of Barcelona were created by Charlemagne as counts when he conquered lands in the Iberian Peninsula north of the river Ebro, and were subservient to the Carolingian dynasty until its decline in
House of Bourbon at least from the beginning of the 13th century, when the estate of Bourbon was ruled by the Sire de Bourbon who was a vassal of the King of France. The term House of Bourbon ("Maison de Bourbon") is sometimes used to refer to this and the House of Bourbon-Dampierre, the second family to rule the seigneury. In 1272, Robert, Count of Clermont, sixth and youngest son of King Louis IX of France, married Beatrix of Bourbon, heiress to the lordship of Bourbon and member of the House of Bourbon-Dampierre. Their son Louis was made Duke of Bourbon in 1327.