Introduction
The Royal Alcázar of Seville is a historic royal palace in the Casco Antiguo of Seville, originally built by Muslim rulers in the 10th–11th century and later expanded by Spanish Christian monarchs, blending Mudéjar, Gothic, and Renaissance styles. Recognized as a UNESCO World Heritage Site since 1987, it is considered the oldest royal palace still in use in Europe, with upper levels still serving as the official Seville residence of the Spanish royal family.