page_title: Cosimo III de' Medici, Grand Duke of Tuscany
section_title: 1679–1685
hierarchical_section_title: Cosimo III de' Medici, Grand Duke of Tuscany / Reign / 1679–1685
context_page_description: Cosimo III de' Medici was the penultimate Medici Grand Duke of Tuscany. He reigned from 1670 to 1723, and was the elder son of Grand Duke Ferdinando II. Cosimo's 53-year-long reign, the longest in Tuscan history, was marked by a series of ultra-reactionary laws which regulated prostitution and banned May celebrations. His reign also witnessed Tuscany's deterioration to previously unknown economic lows. He was succeeded by his elder surviving son, Gian Gastone, when he died, in 1723.
  He married Marguerite Louise d'Orléans, a cousin of Louis XIV. The marriage was solemnized by proxy in the King's Chapel at the Louvre, on Sunday, 17 April 1661. It was a marriage fraught with tribulation. Marguerite Louise eventually abandoned Tuscany for the Convent of Montmartre. Together, they had three children: Ferdinando in 1663, Anna Maria Luisa, Electress Palatine, in 1667, and Gian Gastone, the last Medicean ruler of Tuscany, in 1671.
  In later life, he attempted to have Anna Maria Luisa recognised as the universal heiress of Tuscany, but Charles VI, Holy Roman Emperor, would not allow it because Tuscany was an imperial fief, and he felt he alone could alter the Tuscan laws of succession.
context_section_description: Cosimo kept himself apprised of his wife's conduct in France through the Tuscan emissary, Gondi. Marguerite Louise frequently requested more money from the Grand Duke, while he was scandalised by her behaviour: she took up with a groom named Gentilly. In January 1680 the Abbess of Montemarte asked Cosimo to pay for the construction of a reservoir, following a scandal at the convent: The Grand Duchess had placed her pet dog's basket in close proximity to the fire, and the basket burst into flames, but instead of trying to extinguish it, she urged her fellow nuns to flee for their lives. On previous occasions, she had explicitly stated that she would burn down the convent if the Abbess disagreed with her, too, making the Abbess view the accident as an intentional. Cosimo, unable to do much else for fear of upsetting Louis XIV, reproached her in a series of letters. Another scandal erupted that summer, the Grand Duchess bathed nude, as was the custom, in a local river. Cosimo exploded with anger upon hearing of this. Louis XIV, tiring of Florence's petitions, retorted: "Since Cosimo had consented to the retirement of his wife into France, he had virtually relinquished all right to interfere in her conduct." Following Louis XIV's rebuff, Cosimo fell grievously ill, only to be roused by Francesco Redi, his physician, who helped him reform his ways so illness would never strike him again. It was after this event that Cosimo finally stopped bothering with the Grand Duchess's life. In 1682 Cosimo III appointed his brother, Francesco Maria de' Medici, Governor of Siena.
  The Holy Roman Emperor requested Cosimo's participation in the Great Turkish War. At first, he resisted, but then sent a consignment of munitions to Trieste, and offered to join the Holy League. They defeated the Turks at the Battle of Vienna in September 1683. To Cosimo's dismay, "many scandals and disorders continued to occur in the matter of carnal intercourse between Jews and Christian women, and especially putting their children out to be suckled by Christian nurses." The Grand Duke, wishing to supplement the "foe of heretics" persona he acquired after Vienna, outlawed the practice of Jews using Christian wet-nurses and declared that if a Christian father wished to have his half-Jewish child suckled by a Christian nurse he must first apply to the government for a permit in writing. In addition, public executions increased to six per day. Gilbert Burnet, Bishop of Salisbury and a famed memorialist, visited this Florence in November 1685, of which he wrote that "[Florence] is much sunk from what it was, for they do not reckon that there are fifty thousand souls in it; the other states, that were once great republic, such as Siena and Pisa, while they retained their liberty, are now shrunk almost into nothing..."
caption: Cosimo III, Grand Duke of Tuscany, engraving by Adriaen Haelwegh before 1691, from the collection of the National Gallery of Art
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