It was built c. 16 BC,[1] and reconstructed in the following years,[2] by Marcus Vipsanius Agrippa, who was also the original patron of the Pantheon in Rome, and was dedicated or rededicated c. 2-4/5 AD to his two sons, Gaius Caesar and Lucius Caesar, adopted heirs of Augustus who both died young. The inscription dedicating the temple to Gaius and Lucius was removed in medieval times. However, a local scholar, Jean-François Séguier, was able to reconstruct the inscription in 1758 from the order and number of the holes in the portico's facade, to which the bronze letters had been affixed by projecting tines. According to Séguier's reconstruction, the text of the dedication read (in translation): "To Gaius Caesar, son of Augustus, Consul; to Lucius Caesar, son of Augustus, Consul designate; to the princes of youth."[3] During the 19th century the theatre slowly began to recover its original splendour, due to the efforts of Prosper Mérimée, who then held the position of director of "Monuments Historiques". Under his direction, restoration work began in 1825 and in 1869 the theatre became the home of a "Roman Festival" which celebrated the glory of Rome and included a performance of Méhul's opera, Joseph. In the latter part of the century, all the major players of the French classical stage appeared in the Orange festivals, including Sarah Bernhardt who played "Phèdre" in 1903.