Château de Sully-sur-Loire is a 14th-century medieval fortress located on the Loire River, featuring a distinctive rectangular keep flanked by four circular towers surrounded by water-filled moats. Originally documented in 1102 as a defensive post, it became most famous under Duke Maximilien de Béthune, minister to King Henri IV, who purchased and renovated it in 1602. The castle hosted notable historical figures including Joan of Arc and Louis XIV, and today remains classified as a Historic Monument and designated a Grand Site of the Loire Valley, displaying rich collections of 17th-century tapestries, paintings, and period furniture.
