The Royal Palace of Seville is the oldest royal palace in Europe. It is a palace and a castle. It was listed as a World Heritage Site in 1987. The palace was built in 1181 and lasted for more than 500 years. Once as a royal palace of Islam and Catholicism, the Palace of Seville presents a mixture of different styles. The Pedro I Palace in the Royal Palace of Seville was built in the 14th century. Since the Catholic King Pedro I had a good relationship with the Islamic kings of Granada, the craftsmen who built the palace included both Christian craftsmen from Toledo and Arab craftsmen who participated in the construction of the Alhambra. Therefore, in this building, you can see Gothic architectural elements and Islamic clay architectural style at the same time, becoming a model of Mudejar architecture. It is also the location of the palace garden of the Martel family in Dorn in the TV series "Game of Thrones".