What is Cosimo II de' Medici, Grand Duke of Tuscany?
{{Infobox royalty | type = monarch | name = Cosimo II | image = Justus Sustermans 010.jpg | caption = Cosimo II after Justus Sustermans | reign = 17 February 1609 &ndash; 28 February 1621 | coronation = | succession =[[Grand Duke of Tuscany]] | predecessor = [[Ferdinando I de' Medici, Grand Duke of Tuscany|Ferdinando I]] | successor = [[Ferdinando II de' Medici, Grand Duke of Tuscany|Ferdinando II]] | spouse = [[Archduchess Maria Maddalena of Austria|Maria Maddalena of Austria]] | issue = [[Ferdinando II de' Medici, Grand Duke of Tuscany|Ferdinando II, Grand Duke of Tuscany]]<br> Cardinal Gian Carlo <br> Margherita, Duchess of Parma <br>Prince Mattias, Governor of Siena <br>Prince Francesco <br>Anna, Archduchess of Austria <br>Cardinal Leopoldo | full name = Cosimo de' Medici | house = [[House of Medici]] | father = [[Ferdinando I de' Medici, Grand Duke of Tuscany|Grand Duke Ferdinando I of Tuscany]] | mother = Christine of Lorraine | birth_date = 12 May 1590 | birth_place = [[Palazzo Pitti]], [[Florence]], [[Grand Duchy of Tuscany|Tuscany]] | death_date = {{Death date and age|1621|02|28|1590|05|12|mf=y}} | death_place = [[Palazzo Pitti]], [[Florence]], [[Grand Duchy of Tuscany|Tuscany]] | date of christening = | religion = [[Roman Catholicism]] }} '''Cosimo II de' Medici''' (12 May 1590 – 28 February 1621) was [[Grand Duchy of Tuscany|Grand Duke of Tuscany]] from 1609 until 1621. He was the elder son of [[Ferdinando I de' Medici, Grand Duke of Tuscany]] and [[Christine of Lorraine]]. He married [[Maria Magdalena of Austria]] and had eight children. [[Galileo Galilei]] was his childhood tutor. For the most of his eleven-year reign, he delegated the administration of Tuscany to his ministers. He is best remembered as the patron of [[Galileo Galilei]], his childhood tutor. He died of tuberculosis in 1