Theodulf, an erudite churchman, was present at the court of Charlemagne, who appointed him Bishop of Orléans.
King Charles le Chauve visited this superb villa in 854 and 855.
The oratory has been severely damaged by fire, religious wars and time.
Several renovations were carried out, including a near reconstruction between 1867 and 1876. All that remains of the original building are the foundations, the mosaic and some sections of
A miniature model inside the Oratory shows you the evolution of the building with its unusual shape. The original plan was in the shape of a Greek cross, similar to that of the oratory of the
imperial palace in Aachen and inspired by Armenian churches.
As for the mosaic, it was hidden in the second half of the 18th century because it was covered with three layers of whitewash. It was rediscovered in 1841 when the whitewash was removed.