Poulenc had curtailed work on his opera in March 1954, in light of his understanding of the Béguin-Lavery dispute. Following the July 1954 decision, separate negotiations occurred between Béguin and Lavery, via his agent Marie Schebeko, on rights and royalties to allow Poulenc to write his opera. The formal agreement was dated 30 March 1955, and acknowledged Bernanos, Lavery, von Le Fort, Bruckberger, and Agostini. The terms stipulated that the Poulenc opera was adapted from Bernanos 'with the authorization of Monsieur Emmet Lavery', with Lavery listed in the credits after Bernanos and before von Le Fort, without any contribution of material by Lavery to the libretto. Poulenc then resumed work on the opera, and completed it October 1955.