Alfonso Pérez de Vivero (Valladolid 1603 – Cambrai 21 November 1661) Count of Fuensaldaña was a Spanish soldier nobleman and officeholder.In 1632 when in his late twenties he went to Flanders with a commission as captain of a company in the Army of Flanders. In 1635 he became governor of the citadel of Cambrai and in 1636 Maestro de Campo.
