Tirso de Molina (c. 1579 – 1648) was the nom de plume of friar Gabriel Téllez, Spanish dramatist, poet, and Roman Catholic monk. One of the great playwrights of the Spanish Golden Age, he was the author of EL BURLADOR DE SEVILLA, the first stage play to immortalize the legend of Don Juan, which Mozart used as the basis for his opera Don Giovanni. He is credited with writing over 80 plays, and together with Lope de Vega and Calderón de la Barca, he is part of the golden triad of Spanish Baroque theatre.