Charles III (born Charles Sebastian; Spanish: Carlos Sebastián; 20 January 1716 – 14 December 1788) was King of Spain (1759–1788). He also was Duke of Parma and Piacenza, as Charles I (1731–1735); King of Naples, as Charles VII, and King of Sicily, as Charles V (1734–1759). He was the fifth son of Philip V of Spain, and the eldest son of Philip's second wife, Elisabeth Farnese. A proponent of enlightened absolutism and regalism, he succeeded to the Spanish throne on 10 August 1759, upon the death of his childless half-brother Ferdinand VI.