During a short life of great activity, in emulation of his friend and master, Lope de Vega Carpio, Juan Pérez de Montalván (1602-38) wrote a considerable number of plays, wide in their variety of subject matter and diverse in verse structure. The study of the latter phenomenon, in imitation of distinguished treatises for other dramatists of the Golden Age, will form the chief criterion in this presentation of chronology. That a serious consideration of Montalván's versification is long overdue is evident. As early as 1919, S. G. Morley, in referring to the authorship of La lindona de Galicia, remarked: “Then, one important factor, Montalván's formula [of versification], is practically an unknown quantity . . . ” More recently, Irving A. Leonard in his article, “Montalbán's El valor perseguido and the Mexican Inquisition, 1682,” spoke of the problem of authorship in the case of a play attributed to both Lope de Vega and Montalván. It is hoped that future studies of the authorship and chronology of plays associated in any way with the name of Juan Pérez de Montalván will be facilitated by the facts presented here.