The Cathedral of Saint Mary of the See, better known as Seville Cathedral, is a Roman Catholic cathedral in Seville . It was registered in 1987 by UNESCO as a World Heritage Site, along with the Alcázar palace complex and the General Archive of the Indies. "See" refers to the episcopal see, i.e., the bishop's ecclesiastical jurisdiction.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. It is the third-largest church in the world as well as the largest Gothic church. Since the world's two largest churches, the Basilica of the National Shrine of Our Lady of Aparecida and St. Peter's Basilica, are not the seats of bishops Seville Cathedral is still the largest cathedral in the world.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 Pedro el Cruel. The funerary monuments for cardinals Juan de Cervantes and Pedro González de Mendoza Quiñones are located among its chapels. Christopher Columbus and his son Diego are also buried in the cathedral.