The hisorty of the modern Swedish monarchy begin with the era of the French Revolution. Gustavus III pursued liberal policies, but was assasinated when, after the French Revolution (1789) he became increasingly despotic. His son Gustavus IV Adolphus was only 13 years old when his father was assasinated. Gustavus was bitterly deposed to Napoleon, but an army revolt deposed Gustavus in 1809. Charles XIII formulated for the time a radical new constitution, but was, however, aging and childless. In an effort to appease Napoleon, the Riksdag chose one of Napoleon's trusted marshals as crown prince Jean Baptiste Jules Bernadotte, Prince of Pontecorvo. The marshal accepted and became a bitter enemy of Napoleon. The current royal familt descenced from Crown Prince Bernadotte.