La independencia de Trebujena de Sanlúcar (1494) Historical milestone · Trebujena, Costa Noroeste, Cádiz Image of Trebujena, not of the place itself. Trebujena, already mentioned in the chronicle of Ferdinand III around 1250 and donated to Guzmán el Bueno by Ferdinand IV in 1297, obtained its separation from Sanlúcar de Barrameda through a charter of villazgo in 1494. 1494 Photo: Emilio J. Rodríguez Posada (CC BY-SA 3.0) What to see and do in Trebujena