Elisabeth of Parma had also wanted the…
November 1738 CE
Elisabeth of Parma had also wanted the Grand Duchy of Tuscany for her son Charles III of Spain; Gian Gastone de' Medici is childless and is related to Elisabeth via her great grandmother Margherita de' Medici.
As a result, Elisabeth son's can claim by right of being a descendant of Margherita.
Although fighting had stopped after the preliminary peace, the final peace settlement has had to wait until the death of the last Medici Grand Duke of Tuscany, Gian Gastone in 1737, to allow the territorial exchanges provided for by the peace settlement to go into effect, in November 1738 ratified in the Treaty of Vienna.
Under its terms, Stanisław Leszczyński, the father-in-law of King Louis XV and the losing claimant to the Polish throne, receives Lorraine, while Francis, in compensation for his loss, is made heir to the Grand Duchy of Tuscany, which he had inherited in 1737.