Adolphe Thiers was succeeded as president by Patrice MacMahon, duc de Magenta, a conservative monarchist who had been at Sedan. He became steadily less popular under the assault of caricatures. One of these, "Aveugle par Ac-Sedan", a French pun on "accidentally blind" and "Bungler at Sedan", put its creator, Émile Cohl, in jail on 11 October 1879, making him instantly famous. Three months later, MacMahon resigned in disgrace—the caricaturists liked to believe that they were responsible. He was succeeded by Jules Grévy, who transferred real power from the post of president to the prime minister and legislature. This led to a period of internal stability and prosperity for France.