Château de Blois
Despite being legally an adult for more than two years, Louis XIII had little power in the government; finally, he asserted his authority the next year. Feeling humiliated by the conduct of his mother, who monopolized power, the King organized (with the help of his favorite the Duc de Luynes) a coup d'état (also named "Coup de majesté") on 24 April 1617: Concino Concini was assassinated by the Marquis de Vitry, and Marie exiled to the Château de Blois.