The Cathedral of Cartagena is located on the hill of La Concepción in the old town of Cartagena. It has been in ruins since 1939, when it was destroyed when Cartagena was shelled in the Spanish Civil War by Nationalist forces.
Cartagena had a see before the Muslim conquest of Spain, but no trace of the pre-conquest cathedral has been found yet. In 1243 Alfonso X of Castile launched a campaign to reconquer the Kingdom of Murcia, and petitioned Pope Innocent IV to restore the Diocese of Cartagena. In 1250 the Pope issued the bull 'Spiritus exultante' restoring the diocese. The first bishop of the new phase of the Diocese was the Franciscan friar Pedro Gallego, Alfonso's confessor.
There is inconclusive evidence whether there was a cathedral in Cartagena at that time. In medieval and Renaissance documents the church is described as Iglesia Mayor, and is only called 'Old Cathedral' from the eighteenth century.
García Martínez, the second bishop of the diocese, decided with the consent of King Sancho IV to transfer the see to Murcia, although retaining the name of Diocese of Cartagena. The church therefore lost its status of a cathedral, and became a parish church.
Throughout the centuries, there were continuing demands to the Vatican for the restitution of the bishopric to Cartagena. The church of Santa María de Gracia, with the shape and dimensions of a cathedral, was built in the 18th century on a different site, with the aim of becoming the seat of the diocese in place of the original church.
In the late nineteenth century the foundations of the medieval church collapsed. The church was restored by the architect Victor Beltrí, in Romanesque style with modernist elements.
During the Spanish Civil War the church was attacked and the contents damaged on 25 July 1936. In 1939 it was bombed and has remained abandoned since then.
References:Visby Cathedral (also known as St. Mary’s Church) is the only survived medieval church in Visby. It was originally built for German merchants and inaugurated in 1225. Around the year 1350 the church was enlarged and converted into a basilica. The two-storey magazine was also added then above the nave as a warehouse for merchants.
Following the Reformation, the church was transformed into a parish church for the town of Visby. All other churches were abandoned. Shortly after the Reformation, in 1572, Gotland was made into its own Diocese, and the church designated its cathedral.
There is not much left of the original interior. The font is made of local red marble in the 13th century. The pulpit was made in Lübeck in 1684. There are 400 graves under the church floor.