Why did Alfred de Vigny write the historical novel Cinq-Mars?

Alfred de Vigny wrote the historical novel Cinq-Mars (1826) as a demonstration of his narrative talent, as he was not content to excel solely in poetry.1

While the work gained significant popularity due to the contemporary vogue for the novels of Sir Walter Scott, Vigny’s motivation for the subject matter was rooted in his broader philosophical concerns. He used the story of the Marquis de Cinq-Mars’s conspiracy against Cardinal de Richelieu to explore the theme of political expedience.12

Ultimately, Vigny’s work was driven by a spontaneously tragic conception of existence, where he projected his own moral conflicts and agonies onto historical symbols to address the inhumane forces that rule the world.2