Prim's pronunciamiento Historical milestone · Villarejo de Salvanés, Las Vegas, Madrid Image of Villarejo de Salvanés, not of the place itself. General Juan Prim began here in January 1866 the rising against O'Donnell's government, which ended in failure and forced him to flee to Portugal. The town had earlier been the seat of the Grand Commandery of Castile of the Order of Santiago. 3 de enero de 1866 Photo: Fabio Bartolomei (CC BY-SA 3.0) What to see and do in Villarejo de Salvanés