In April 1907 Rozenberg appeared at the Bouffes-Parisiens as Chaumette in Papillon. At the Variétés in February 1910 he played Mareuil in Le Rubicon. He reurned to the Bouffes-Parisiens in March 1910 as Le Breautiere in Pierre Mortier's Le jeune homme candide. He was then appointed Directeur de la scène at the Théâtre Michel, and appeared there in 1912 in Georges Feydeau's On purge bébé! and Jean Kolb and André de Fouquières' Le Tiers Porteur.Parker, p. 962 In 1913 he appeared in "Les honneurs de la guerre" by Maurice Hennequin. Lucien Rozenberg, Arlette Dorgère et Léon Lérand dans "Les honneurs de la guerre" de Maurice Hennequin, BNF Gallica. Retrieved 13 December 2022
