his family. The Pope was impressed by Giulio's spontaneity and eloquence, forgave his desertion, and invited him to become a Papal emissary.

In 1628 Mazarin was named the secretary to Jean-François Sacchetti, a senior papal diplomat, who was trying to prevent the impending War of the Mantuan Succession between the armies of France and Spain for dominance of that region of northern Italy. Throughout 1629 and 1630 he shuttled between Milan, Mantua, Turin, Casale