Career
Then he founded a political journal, L"Epoque (1845-1848), and his violent polemics in support of François Guizot brought him notoriety and many few duels. In 1851, in the Constitutionnel, he declared himself openly an advocate of the French Empire, and in 1852 was elected as official candidate by the départment of Gers to the Second Republic"s National Assembly. In March 1868 he accused the Liberal deputies of having received money from Wilhelm I of Prussia for opposing Bonaparte, and, when called upon for proof, submitted only false or trivial documents.
After the Empire"s defeat in the Franco-Prussian War and the proclamation of the Third Republic (4 September 1870), Granier de Cassagnac fled to Belgium, and returned to France for the elections of 1876, and was elected deputy.
He continued to combat all the republican reforms, but without electoral success. He died on his castle Couloumé.