This paper examines the representation of Ignatius of Loyola's life and conversion in the Spanish Jesuit theatre of the Siglo de Oro. Drawing on the corpus of dramas in which Ignatius appears as the protagonist, compiled by Ricardo Enguix (2019), the analysis pursues a twofold aim. On the one hand, it undertakes a structural and thematic comparison between the dramatic texts and their principal hagiographical sources—most notably the biographies of Ignatius produced by Pedro de Ribadeneira and Gian Pietro Maffei. This comparison highlights the divergences, continuities, and adaptations introduced by playwrights in their theatrical reworking of hagiographical material. On the other hand, a deeper understanding of the staging of Ignatius' life and conversion makes it possible to explore the models of hierarchical obedience and discipline, as well as the reconfiguration of clerical masculinities and the forms of theological renewal promoted by the Society of Jesus during the phase of its full institutional consolidation under the generalate of Claudio Acquaviva (1581-1615). From this perspective, Jesuit theatre emerges as a sophisticated pedagogical device, in which the performative construction of sanctity functions as a tool for educating the colleges' "student-actors", while simultaneously producing and deconstructing social and institutional hierarchies.