ISABELLA OF CASTILE (1451-1504, Queen of Spain 1474-1504). Letter signed ('Yo la Reyna') to her accountant ('camarero') Sancho de Paredes, Santander, 14 July 1501, ordering immediate payment of 1500 maravedis which is owing to the bookseller Salvador for three books and the binding of a missal for her ladies-in-waiting, countersigned by Miguel Podalmara, and receipted at foot by the recipient, one page, 4° (290 x 215mm), cancel slits neatly repaired.