Cosimo I de' Medici was the second and last duke of Florence from 1537 until 1569, when he became the first grand duke of Tuscany, a title he held until his death. Cosimo I succeeded his cousin to the duchy. He built the Uffizi (office) to organize his administration, and conquered Siena to consolidate Florence's rule in Tuscany. He expanded the Pitti Palace and most of the Boboli Gardens were also laid out during his reign.
Cosimo I de' Medici, Grand Duke of Tuscany (born 1519)
Cosimo I de' Medici, Grand Duke of Tuscany (born 1519)
On April 21, in the year 1574, Cosimo I de' Medici, Grand Duke of Tuscany (born 1519). This event is recorded as a Notable Deaths event in the history of April 21, one of 329 recorded events on this date across all of history.
1 notable person is associated with this event, including Cosimo I de' Medici. Learn more below.
Key Facts
- This event took place on April 21, 1574 (AD era).
- It is categorised as a Notable Deaths event in recorded history.
- Referenced in 1 Wikipedia article.
- 1 notable person is recorded as involved in or associated with this event.
- Wikipedia source last updated on 24 December 2025.
On This Date in History 329
This article draws on content from Wikipedia, available under CC BY-SA 4.0.
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