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
House of Bourbon-Parma House of Bourbon-Parma The House of Bourbon-Parma () is a cadet branch of the Spanish royal family, whose members once ruled as King of Etruria and as Duke of Parma and Piacenza, Guastalla, and Lucca. The House descended from the French Capetian dynasty in male line. Its name of Bourbon-Parma comes from the main name (Bourbon) and the other (Parma) from the title of Duke of Parma. The title was held by the Spanish Bourbons as the founder was the great-grandson of Duke Ranuccio II Farnese, Duke of Parma. The Duchy of Parma was created in 1545 from that part