エリザベッタ・ファルネーゼ
Philip, now married to his second wife, Elisabeth Farnese, wanted to regain Spanish territories in Naples and Sicily, ceded to Austria in 1714, in part so that Elisabeth's first-born son Charles, unlikely to succeed to the throne of Spain because he had two older half-brothers in line before him, would have territories to rule as king. Elisabeth Farnese had strong influence over her husband and tenaciously sought concessions from France that benefited Charles. Philip demanded that previous treaties affecting Italy would be abrogated and that a new treated would cede Naples, Sicily, and the Tuscan forts to Spain for Charles's benefit. The Spanish negotiator with Fleury, José Patiño, was successful, leading to the signing of the First Family Pact. Charles received the future Italian possessions, Elisabeth Farnese retained her patrimonial rights in Italy. In the event that Spain's restriction of British trade was attacked in response, France pledged to come to its defense. France received important trading rights with Spain, whose overseas empire in Spanish America was the source of vast amounts of silver flowing to the world and a lucrative market. This led to their participation in the War of the Polish Succession in 1733.