Carvajal held the Licentiate in canon law and civil law from the University of Salamanca (1436). He was Canon of Avila as well as of Salamanca. By 1438 he had attained distinction at Rome as Auditor of the Rota, appointed at the request of the King of Castile, John II (1406-1454).Lopez, p. 2. Conradus Eubel , Hierarchia catholica Medii Aevi II, editio altera (Monasterii 1914), p. 216. He became attached to Cardinals Juan Cervantes, Domenico Ram, and Alfonso Carillo. Under Pope Martin V Carvajal served as Governor of the City of Rome.Lopez, pp. 2-3.
