The Alcázar of Toledo (, ) is a stone fortification located in the highest part of Toledo, Spain. Once used as a Roman palace in the 3rd century, it was restored under Charles I (Holy Roman Emperor Charles V) and his son Philip II of Spain in the 1540s. In 1521, Hernán Cortés was received by Charles I at the Alcázar, following Cortes' conquest of the Aztecs.