Castile's money of account in the sixteenth and seventeenth centuries was the maravedí. Coins in general usage included the real, officially pegged at 34 mrs., the ducat, which was equal to 375 mrs., and the escudo, which was worth 400 mrs. after a revaluation in 1566. In order to avoid confusion, monetary figures, whenever possible, are given in terms of the maravedí.

For simplicity, the spelling of Spanish words has also been modernized. Accent marks, commonly omitted in the sixteenth and seventeenth centuries, have been added.