The Royal Castle of Cognac, known as Château de Cognac, is a historic fortress dating to the 10th-11th centuries and the birthplace of King Francis I of France. Located in southwestern France, the castle features impressive Gothic and Renaissance architecture and has served multiple purposes throughout its history. In 1795, Baron Otard preserved the structure from destruction by establishing his renowned cognac business within its walls, transforming it into both a museum and working distillery. Visitors today can explore cellar tours, taste fine cognacs, and enjoy the castle's beautiful gardens overlooking the scenic Charente River.