Catolacus of Catullius

catholic (adj.) 

mid-14c., "of the doctrines of the ancient Church," literally "universally accepted," from French catholique, from Church Latin catholicus "universal, general," from Greek katholikos, from phrase kath' holou "on the whole, in general," from kata "about" + genitive of holos "whole" (see safe (adj.)). Applied to the Church in Rome c. 1554, after the Reformation began. General sense of "of interest to all, universal" is from 1550s.

Tikrai?

Until the 3rd century, Saint-Denis was a small settlement called Catolacus or Catulliacum, probably meaning "estate of Catullius", a Gallo-Roman landowner. About 250 AD, the first bishop of Paris, Saint Denis, was martyred on Montmartre hill and buried in Catolacus. 

Crypte archéologique

Shortly after 250 his grave became a shrine and a pilgrimage centre, with the building of the Abbey of Saint Denis, and the settlement was renamed Saint-Denis. 

In 1793, during the French Revolution, Saint-Denis was renamed Franciade in a gesture of rejection of religion. In 1803, however, under the Consulate of Napoléon Bonaparte, the city reverted to its former name of Saint-Denis.