The Royal Alcázars of Seville historically known as al-Qasr al-Muriq and commonly known as the Alcázar of Seville is a royal palace in Seville, Spain, built for the Christian king Peter of Castile. It was built by Castilian Christians on the site of an Abbadid Muslim alcazar, or residential fortress destroyed after the Christian conquest of Seville. The palace is a preeminent example of Mudéjar architecture in the Iberian Peninsula but features Gothic, Renaissance and Romanesque design elements from previous stages of construction. The upper storeys of the Alcázar are still occupied by the royal family when they are in Seville, and are administered by the Patrimonio Nacional. It was registered in 1987 by UNESCO as a World Heritage Site, along with the adjoining Seville Cathedral and the General Archive of the Indies. (Wikipedia)