Eleonora d'Este may refer to:
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Eleonora d'Este (1515–1575), daughter of Alfonso I d'Este and Lucrezia Borgia, nun, and possibly a composer of religious music
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Eleonora d'Este (1537–1581)
Eleonora d'Este (19 June 1537, Ferrara – 19 February 1581) was a Ferrarese noblewoman. She was the fourth daughter of Ercole II d'Este, Duke of Ferrara and his wife Renée of France, the second daughter of Louis XII of France and Anne of ...
, daughter of Ercole II d'Este and Renata di Francia
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Eleonora d'Este (1561–1637), daughter of Alfonso d'Este, marquess of Montecchio
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Eleonora d'Este (1595–1661), daughter of Cesare d'Este, duke of Modena
*Leonora or Eleonora d'Este (1639–1640), daughter of Francesco I d'Este, duke of Modena
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Eleonora d'Este (1643–1722), daughter of Francesco I d'Este, duke of Modena
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