Information made in Alger before fr. Juan Gil, trinitarian redeemer, and Pedro de Rivera, public notary, by motion of Miguel de Cervantes Saavedra, in which his services and big troubles of his captivity are shown; all of this verified with the certification of the aforesaid friar, and made soon after the Cervantes' ransom. Archivo General de Indias, PATRONATO, 253,R.1