The Castillo de Alburquerque, also known as the Castillo de Luna, was built in the 14th century in Alburquerque, Extremadura, Spain. Álvaro de Luna, its builder, lived there and was very happy in the castle, which had many enclosures and rooms like bedrooms and kitchens. The castle is also called Castillo de Luna because that was the surname of its original builder, Álvaro de Luna.