Cespedes y Meneses, Gonzalo de. Gerardo the Unfortunate Spaniard. Trans. Leonard Digges (collection of tales, 1622). Used by Massinger when revising.

De Castro y Bellris, Guillén. La Fuerza de la Costumbre (1625). Used by Massinger when revising.

REFERENCE : George Walton Williams, ed. 'Love's Cure.' The Dramatic Works in the Beaumont and Fletcher Canon. Gen. ed. Fredson Bowers. 10 vols. Cambridge: Cambridge University Press, 1966-96. 3.5-7.