Francesco I d'Este

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Francesco I d'Este
Portrait by Diego Velázquez, 1638
Duke of Modena and Reggio
Reign	11 July 1629 – 14 October 1658
Predecessor	Alfonso III d'Este
Successor	Alfonso IV d'Este
Born	(1610-09-06)6 September 1610 Modena
Died	14 October 1658(1658-10-14) (aged 48) Santhià, Vercelli, Savoy
Spouses	Maria Caterina Farnese ​ ​ (m. 1631; died 1646)​ Vittoria Farnese ​ ​ (m. 1648; died 1649)​ Lucrezia Barberini ​ (m. 1654)​
Issue	Alfonso, Hereditary Prince of Modena Alfonso IV, Duke of Modena Isabella, Duchess of Parma Eleonora d'Este Maria, Duchess of Parma Rinaldo, Duke of Modena
House	Este
Father	Alfonso III d'Este, Duke of Modena
Mother	Isabella of Savoy
Religion	Roman Catholicism

Francesco I d'Este (6 September 1610 – 14 October 1658) was Duke of Modena and Reggio from 1629 until his death. The eldest son of Alfonso III d'Este, he became reigning duke after his father's abdication.