Spain in the 17th century all contributed to the decline of the Habsburg rule of Spain. The end of the 17th century also brought the end of Habsburg rule. The 18th century began with the War of the Spanish Succession, which concluded in the establishment of the Bourbon dynasty in Spain. In 1469, Ferdinand II of Aragon and Isabella I of Castile united the Crowns of Aragon and Castile into one, creating the early modern Spanish state. Although this ensured future Spanish rulers would rule over both Aragon and Castile, both regions had their own administration and legal systems. In addition, Aragon itself was divided
Bourbon-Busset today, instead of me." Since 2001, the Head of the House of Bourbon-Busset is Charles de Bourbon, Count of Busset (born 1945), who is a civil engineer of the "Ecole des Mines de Paris", and Mayor of Ballancourt-sur-Essonne (1998-2014). He is the son of Jacques de Bourbon-Busset. Bourbon-Busset The Bourbon-Busset family is an illegitimate branch of the House of Bourbon, being thus agnatic descendants of the Capetian dynasty. Historically, they have been regarded as non-dynastic since decisions rendered by Louis XI of France. Possibly, however, the family may be canonically legitimate, in which case it is the most senior extant