The Italian economy declined during the 1600s and 1700s, as the peninsula was excluded from the rising Atlantic slave trade. Following the European wars of succession of the 18th century, the south passed to a cadet branch of the Spanish Bourbons and the North fell under the influence of the Habsburg-Lorraine of Austria. During the Coalition Wars, northern-central Italy was reorganised by Napoleon in a number of Sister Republics of France and later as a Kingdom of Italy in personal union with the French Empire. The southern half of the peninsula was administered by Joachim Murat, Napoleon's brother-in-law, who was crowned as King of Naples. The 1814 Congress of Vienna restored the situation of the late 18th century, but the ideals of the French Revolution could not be eradicated, and soon re-surfaced during the political upheavals that characterised the first part of the 19th century.