The Cathedral of Saint Mary of the See (Spanish: Catedral de Santa María de la Sede), better known as Seville Cathedral, is a Roman Catholic cathedral in Seville (Andalusia, Spain). It is the largest Gothic cathedral and the third-largest church in the world. 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 nearly a thousand years. The cathedral also serves as the burial site of Christopher Columbus. The Archbishop's Palace is located on the northeastern side of the cathedral.