Cosimo I | |||||
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![]() Portrait of Cosimo I de' Medici, c. 1545 | |||||
Duke of Florence | |||||
Reign | 6 January 1537 – 21 August 1569 | ||||
Predecessor | Alessandro | ||||
Grand Duke of Tuscany | |||||
Reign | 21 August 1569 – 21 April 1574 | ||||
Successor | Francesco I | ||||
Born | 12 June 1519 Florence, Republic of Florence | ||||
Died | 21 April 1574 Florence, Grand Duchy of Tuscany | (aged 54)||||
Spouse | |||||
Issue more... | Bia de' Medici Maria de' Medici Francesco I de' Medici Isabella, Duchess of Bracciano Cardinal Giovanni Lucrezia, Duchess of Modena Garzia Ferdinando I de' Medici Pietro Virginia, Duchess of Modena | ||||
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House | Medici | ||||
Father | Giovanni delle Bande Nere | ||||
Mother | Maria Salviati | ||||
Religion | Catholicism | ||||
Signature | ![]() |
Cosimo I de' Medici (12 June 1519 – 21 April 1574) was the second duke of Florence from 1537 until 1569, when he became the first grand duke of Tuscany, a title he held until his death.