Louis Philippe I (6 October 1773 – 26 August 1850), nicknamed the Citizen King, was King of the French from 1830 to 1848, the penultimate monarch of France, and the last French monarch to bear the title "King". He abdicated from his throne during the French Revolution of 1848, which led to the foundation of the French Second Republic.
Louis Philippe was the eldest son of Louis Philippe II, Duke of Orléans (later known as Philippe Égalité). As Duke of Chartres, the younger Louis Philippe distinguished himself commanding troops during the French Revolutionary Wars and was promoted to lieutenant general by the age of 19 but broke with the First French Republic over its decision to execute King Louis XVI. He fled to Switzerland in 1793 after being connected with a plot to restore France's monarchy. His father fell under suspicion and was executed during the Reign of Terror.