The Cathedral of Saint Mary of Tudela was originally a collegiate church. It became a cathedral with the creation of the Diocese of Tudela, which existed 1783-1851 and again 1889-1956. It is now a co-cathedral in the Archdiocese of Pamplona and Tudela.
Christians under Alfonso the Battler conquered Tudela in 1119. The city had been under Muslim control, although three religious communities were living there. In the aftermath of the conquest, Muslims were forced to live in a suburb outside the city walls. The city´s main mosque was handed over to the church. The site was designated for the construction of a church (prior to the mosque there had been a church there dedicated to Santa Maria la Blanca). Construction began on a collegiate church in 1168.
The architectural style initially used was Romanesque. Among the treasures of the church, are the three Romanesque portals with elaborate sculptural decoration. The North door is called the Portal de Santa Maria, while to the South is the Portal del Juicio (Portal of the Last Judgement).
The nave and chapels was rebuilt in Gothic-style. Construction lasted until the 13th-century.
The main chapel has a retablo (reredos) by 15th-century artists consisting of 18 panels of the Life of Jesus and Mary, and others depicting prophets and apostles. The sculpture of the Assumption of the Virgin (1606) is by Juan Bascardo.
The central choir was completed by Esteban de Obray in Gothic style. The organ was made in 1759 by Lucas de Tarazona of Lerín.References:
Considered to be one of the most imposing Roman ruins, Diocletian’s palace is certainly the main attraction of the city of Split. The ruins of palace, built between the late 3rd and the early 4th centuries A.D., can be found throughout the city. Today the remains of the palace are part of the historic core of Split, which in 1979 was listed by UNESCO as a World Heritage Site.
While it is referred to as a 'palace' because of its intended use as the retirement residence of Diocletian, the term can be misleading as the structure is massive and more resembles a large fortress: about half of it was for Diocletian's personal use, and the rest housed the military garrison.
The palace has a form of an irregular rectangle with numerous towers on the western, northern, and eastern facades.