The Cathedral of Saint Mary of the See (Catedral de Santa María de la Sede), better known as Seville Cathedral, is a Roman Catholic cathedral in Seville, Andalusia, Spain. It was registered in 1987 by UNESCO as a World Heritage Site, along with the adjoining Alcázar palace complex and the General Archive of the Indies. It is one of the largest churches in the world as well as the largest Gothic church.
After its completion in the early 16th century, Seville Cathedral supplanted Hagia Sophia as the largest cathedral in the world, a title the Byzantine church had held for a thousand years. The Gothic section alone has a length of , a width of , and its maximum height in the center of the transept is . The total height of the Giralda tower from the ground to the weather vane is .
Seville Cathedral was the site of the baptism of Infante Juan of Aragon in 1478, only son of the Catholic Monarchs Ferdinand II of Aragon and Isabella I of Castile. Its royal chapel holds the remains of the city's conqueror, Ferdinand III of Castile, his son and heir, Alfonso the Wise, and their descendant, King Peter the Cruel. The funerary monuments for cardinals Juan de Cervantes and Pedro González de Mendoza are located among its chapels. Christopher Columbus and his son Diego are also buried in the cathedral.
The Archbishop's Palace is located on the northeastern side of the cathedral.
The Almohad caliph Abu Yaqub Yusuf ordered the construction of a new grand mosque for the city in 1172 on the south end of the city. The new mosque was dedicated in 1182, but was not completed until 1198. It supplanted the one built between 829 and 830 by Umar Ibn Adabbas on the site of the present-day collegiate church of Divino Salvador, as the main mosque in the city. Larger and closer to the city's alcázar, the mosque was designed by architect Ahmad ben Basso as a rectangular building with a surface of over , including a minaret and ablutions courtyard. Its prayer hall consisted of seventeen aisles oriented southward, perpendicular to its qibla wall, in the manner of many mosques of Al-Andalus, including the mosque of Ibn Adabbas.