Cosimo III de' Medici

Cosimo III
Cosimo in granducal robes with Tuscan regalia by Baldassare Franceschini, 1676–77
Grand Duke of Tuscany
Reign23 May 1670 – 31 October 1723
PredecessorFerdinando II
SuccessorGian Gastone I
Born(1642-08-14)14 August 1642
Pitti Palace, Florence, Grand Duchy of Tuscany
Died31 October 1723(1723-10-31) (aged 81)
Pitti Palace, Florence, Grand Duchy of Tuscany
Burial
SpouseMarguerite Louise d'Orléans
Issue
Detail
Names
Cosimo de' Medici
HouseMedici
FatherFerdinando II de' Medici
MotherVittoria Della Rovere
ReligionCatholicism

Cosimo III de' Medici (14 August 1642 – 31 October 1723[1]) was Grand Duke of Tuscany from 1670 until his death in 1723, the sixth and penultimate from the House of Medici. 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 laws that regulated prostitution and May celebrations.[clarification needed] His reign also witnessed Tuscany's deterioration to previously unknown economic lows. In 1723, when Cosimo died, he was succeeded by the younger of his two surviving children, Gian Gastone.[2]

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 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. All Cosimo's efforts to salvage the plan foundered, and in 1737, upon the death of his younger child, Gian Gastone, Tuscany passed to the House of Lorraine.

  1. ^ Guarini, Elena Fasano (1984). "COSIMO III de' Medici, granduca di Toscana". Dizionario Biografico degli Italiani. Vol. 30.
  2. ^ Hale, pp. 185–186.

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