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Cosimo III de' Medici, Grand Duke of Tuscany facts for kids

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Cosimo III
Volterrano, Cosimo III de' Medici in grand ducal robes (Warsaw Royal Castle).jpg
Cosimo in granducal robes, with Tuscan regalia
Grand Duke of Tuscany
Reign 23 May 1670 – 31 October 1723
Predecessor Ferdinando II
Successor Gian Giastone
Born 14 August 1642
Pitti Palace, Florence, Tuscany
Died 31 October 1723(1723-10-31) (aged 81)
Pitti Palace, Florence, Tuscany
Burial Basilica of San Lorenzo, Tuscany
Consort Marguerite Louise d'Orléans
Issue
Detail
Ferdinando, Grand Prince of Tuscany
Anna Maria Luisa, Electress Palatine
Gian Gastone, Grand Duke of Tuscany
Full name
Cosimo de' Medici
House House of Medici
Father Ferdinando II de' Medici
Mother Vittoria della Rovere
Religion Roman Catholicism

Cosimo III de' Medici (14 August 1642 – 31 October 1723) was the penultimate Grand Duke of Tuscany. He reigned from 1670 to 1723, and was the elder son of Grand Duke Ferdinando II of Tuscany. Cosimo's fifty long reign, the longest in Tuscan history, was marked by a series of regulatory laws. His reign also saw Tuscany's bad finances become even worse. He was succeeded by his elder surviving son, Gian Gastone de' Medici, when he died, in 1723.

He married Marguerite Louise d'Orléans, a cousin of Louis XIV. It was a bad marriage and Marguerite Louise eventually left Tuscany to remain at the Convent of Montmartre in Paris. Together, they had 3 children. In later life, he tried to have Anna Maria Luisa recognised as heiress of Tuscany, but Charles VI, Holy Roman Emperor, would not allow it. Tuscany passed it to the House of Lorraine in 1737.

Issue

Cosimo III had three children with Marguerite Louise d'Orléans, a granddaughter of Henry IV of France:

Cosimo III's official style was "Cosimo the Third, By the Grace of God, Grand Duke of Tuscany."


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