There are no transepts, and the nave is wide and short, its area being entirely roofed by the two circular cupolas, each perhaps fifty feet in diameter. In height these two details depart from the true hemisphere, as has always been usual in dome construction. There were discovered, as late as 1890, in this church, many mural paintings of great interest. Of the greatest importance was that in the westerly cupola, which presents an entire composition, drawn in black and colour.
The cupola is perhaps forty feet in diameter, and is divided by the decorations into eight sectors. The principal features of this remarkable decoration are the figures of eight of the prophets, David, Daniel, Jeremiah, Jonah, Ezra, Isaiah, Ezekiel, and Habakkuk, each a dozen or more feet in height.
Taken as a whole, in spite of their recent discovery, these elaborate decorations are supposed to have been undertaken by or under the direction of the bishops who held the see from 1280 to 1324; most likely under Hugo Geraldi (1312-16), the friend of Pope Clement V. and of the King of France. This churchman was burned to death at Avignon, and the see was afterward administered by procuration by Guillaume de Labroa (1316-1324), who lived at Avignon.
It is then permissible to think that these wall-paintings of the cathedral at Cahors are perhaps unique in France. Including its sustaining wall, one of the cupolas rises to a height of eighty-two feet, and the other to one hundred and five feet.
The north portal is richly sculptured; and the choir, with its fifteenth-century ogival chapels, has been rebuilt from the original work of 1285.
The interior, since the recently discovered frescoes of the cupolas, presents an exceedingly rich appearance, though there are actually few decorative constructive elements.
The apse of the choir is naturally pointed, as its era would indicate, and its chapels are ornamented with frescoes of the time of Louis XII.; neither very good nor very bad, but in no way comparable to the decorations of the cupolas.
The only monument of note in the interior is the tomb of Bishop Alain de Solminiac (seventeenth century).
The paintings of the choir are supposed to date from 1315, which certainly places them at a very early date. A doorway in the right of the nave gives on the fifteenth-century cloister, which, though fragmentary, must at one time have been a very satisfactory example. The ancient episcopal palace is now the prefecture. The bishop originally bore the provisional title of Count of Cahors, and was entitled to wear a sword and gauntlets, and it is recorded that he was received, upon his accession to the diocese, by the Vicomte de Sessac, who, attired in a grotesque garb, conducted him to his palace amid a ceremony which to-day would be accounted as buffoonery pure and simple. From the accounts of this ceremony, it could not have been very dignified or inspiring.
The history of Cahors abounds in romantic incident, and its capture by Henry of Navarre in 1580 was a brilliant exploit.