The idea of producing a collection of inscriptions from Gaul was first introduced in France in 1835. After several abandoned starts and various ministerial changes, in 1849 the project was entrusted to Léon Renier. The project really took off in 1854, when the Berlin Academy announced its Corpus Inscriptionum Latinarum initiative. The work was divided between Léon Renier for Gallo-Roman pagan inscriptions, Ferdinand de Guilhermy for medieval inscriptions and Edmond Le Blant (1818-1897) for Christian inscriptions. The goal was to publish a collection of inscriptions, beginning with Gallia Narbonensis and then continuing with the rest of Gaul. In 1866, an agreement was signed confirming Renier’s collaboration with the German project. However, the deterioration in diplomatic relations and the 1870 war put an end to this agreement. Despite the relaunch of the project in the 1870s and the advance of the German corpus, the collection of pagan inscriptions by Renier was never published, unlike the collections of Christian and medieval inscriptions, which were both published.