Château de Vincennes, 30 May 1574, aged 23. As his younger brother, Henry, Duke of Anjou, had recently been elected King of Poland and was away from France, their mother Catherine resumed the regency until Henry's return from Poland. In 1625, long after his death, a book Charles wrote on hunting, La Chasse Royale, was published. It is a valuable source for those interested in the history of hounds and hunting. Ancestors See also Catherine de' Medici Charles IX's grand tour of France Louis Duret References Sources External links 1550 births 1574 deaths 16th-century kings of France Burials at the Basilica of Saint-Denis Ancien Régime Dukes of Angoulême French people of the French Wars of Religion Heirs presumptive to the French throne House of Valois-Angoulême Knights of the Garter Knights of the Golden Fleece Modern child monarchs People from Saint-Germain-en-Laye 1560s in France 1570s in France 16th-century deaths from tuberculosis Tuberculosis deaths in France