Editing Francis I, Holy Roman Emperor (section)

==Marriage==
[[File:Maria Theresia im Kreise ihrer Familie.jpg|thumb|Francis I and his family (by [[Martin van Meytens]])]]

Francis and Maria Theresa married on 12 February 1736 in the [[Augustinian Church, Vienna]]. The wedding was held on 14 February 1736. The (secret) treaty between the Emperor and Francis was signed on 4 May 1736. On 5 January 1737, instruments of cession were signed at [[Pontremoli]] between Spain and the Empire, with Spain ceding [[Duchy of Parma and Piacenza|Parma, Piacenza]] and Tuscany to the Holy Roman Empire and the Empire recognizing [[Charles III of Spain|Don Carlos of Spain]] as King of [[Kingdom of Naples|Naples]] and [[Kingdom of Sicily|Sicily]].<ref>Hargreaves-Mawdsley, W. N., ''Eighteenth-Century Spain 1700–1788: A Political, Diplomatic and Institutional History''. Palgrave Macmillan UK.  London, 1979.  {{ISBN|978-1-349-01805-5}}</ref> On 10 January, the Spanish troops began their withdrawal from Tuscany, and were replaced by 6,000 Austrians.<ref>Hale, Florence and the Medici, Orion books, p 192. London, 1977, {{ISBN|1-84212-456-0}}.</ref> On 24 January 1737 Francis received Tuscany from his father-in-law.<ref>Maria Theresia und ihre Zeit. Exhibition from 13 May till October 1980 in Vienna, Schloss Schönbrunn, p. 28, see also pp. 37, 38, 41, 47, 52, 53 for the other details described here.</ref> Until then, Maria Theresa was Duchess of Lorraine.

[[Gian Gastone de' Medici]], who died on 9 July 1737, was the second cousin of Francis (Gian Gastone and Francis' father Leopold were both great-grandchildren of [[Francis II, Duke of Lorraine]]), who also had [[House of Medici|Medici]] blood through his maternal great-great-grandmother [[Marie de' Medici]], [[List of French consorts|Queen consort of France and Navarre]]. In June 1737 Francis went to Hungary again to fight against the Turks. In October 1738 he was back in Vienna. On 17 December 1738 the couple travelled south, accompanied by his brother Charles to visit Florence for three months. They arrived on 20 January 1739.

In 1744 Francis' brother Charles married a younger sister of Maria Theresa, [[Archduchess Maria Anna of Austria (1718–1744)|Archduchess Maria Anna of Austria]]. In 1744 Charles became governor of the Austrian Netherlands, a post he held until his death in 1780.