Cardinal-priest of Santa Croce in Gerusalemme 1616-1630 Gaspar de Borja y Velasco (26 June 1580[1] – 28 December 1645) was a Spanish cardinal, ecclesiastic and politician.

He owed his rise through the church hierarchy to Francisco Gómez de Sandoval y Rojas, a favourite in the court of Philip III.

Part of the grounds for Spain's complaint lay in unfounded rumours of the pope siding with the Protestant Gustavus Adolphus of Sweden (a heretic in the church's eyes).

In response, the pope changed his policy somewhat and made a contribution to the Spanish exchequer, which was then running out of money to finance the war.

He attempts to depose and kill Urban VIII, who is perceived by Spain as sympathetic to Gustavus Adolphus and his heretical American allies in the United States of Europe.