Prosper Mérimée was a French writer in the movement of Romanticism, and one of the pioneers of the novella, a short novel or long short story. He was also a noted archaeologist and historian, and an important figure in the history of architectural preservation. He is best known for his novella Carmen, which became the basis of Bizet's opera Carmen. He learned Russian, a language for which he had great affection, and translated the work of several important Russian writers, including Pushkin and Gogol, into French. From 1830 until 1860 he was the inspector of French historical monuments, and was responsible for the protection of many historic sites, including the medieval citadel of Carcassonne and the restoration of the façade of the cathedral of Notre-Dame de Paris. Along with the writer George Sand, he discovered the series of tapestries called The Lady and the Unicorn, and arranged for their preservation. He was instrumental in the creation of Musée national du Moyen Âge in Paris, where the tapestries now are displayed. The official database of French monuments, the Base Mérimée, bears his name.

Aurelius Prudentius Clemens was a Roman Christian poet, born in the Roman province of Tarraconensis in 348. He probably died in the Iberian Peninsula some time after 405, possibly around 413. The place of his birth is uncertain, but it may have been Caesaraugusta (Saragossa), Tarraco (Tarragona), or Calagurris (Calahorra).

Claudius Ptolemy was an Alexandrian mathematician, astronomer, astrologer, geographer, and music theorist, who wrote about a dozen scientific treatises, three of which were of importance to later Byzantine, Islamic, and Western European science. The first is the astronomical treatise now known as the Almagest, although it was originally entitled the Mathēmatikē Syntaxis or Mathematical Treatise, and later known as The Greatest Treatise. The second is the Geography, which is a thorough discussion on maps and the geographic knowledge of the Greco-Roman world. The third is the astrological treatise in which he attempted to adapt horoscopic astrology to the Aristotelian natural philosophy of his day. This is sometimes known as the Apotelesmatika but more commonly known as the Tetrábiblos, from the Koine Greek meaning "Four Books", or by its Latin equivalent Quadripartite.