Baltasar de Zúñiga y Velasco

Baltasar de Zúñiga y Velasco was a Spanish diplomat and royal advisor who served as a key minister during the reign of Philip III of Spain. Though not formally titled a valido, he wielded considerable influence over foreign policy and court affairs. Zúñiga also played a decisive role in promoting his nephew, Gaspar de Guzmán, Count-Duke of Olivares, who would become the powerful valido of Philip IV.