Gran Duque D'Alba Solera Gran Reserva is considered the prince among the top Spanish brandies.
So that the selected starting wines become a Gran Duque D'Alba Solera Gran Reserva,
The "Holanda" is placed in a solera system for around 12 years in which sherry has matured for at least three years.
This is the only way the brandy gets its typical dark color and the soft, full taste with delicate vanilla and oak notes.