Fernando de Castilla Solera Gran Reserva is aged for 15 years, starting in new French oak barrels and then moving to Oloroso and Amontillado Sherry barrels.

It is produced by Bodegas Rey Fernando de Castilla, named after king Fernando III of Castilla, St. Fernando, who conquered large parts of western Andalucia and discovered the exceptional properties of the soil and climate in this region, ideal for viticulture.