Overview
Archduchess Eleanor of Austria (2 November 1534 – 5 August 1594) was Duchess of Mantua by marriage to William I, Duke of Mantua. She was the daughter of Ferdinand I, Holy Roman Emperor and Anna of Bohemia and Hungary.
Life
Eleanor was the eighth child and sixth daughter out of fifteen children born to Archduke Ferdinand of Austria (before his election as Holy Roman Emperor) and his wife Anna of Bohemia and Hungary. She was a sister of Johanna of Austria, who married Francesco I de' Medici, thus making Eleonora the aunt of Marie de' Medici, Queen of France.
Life in Mantua
She married William I, Duke of Mantua on 26 April 1561.
From Wikipedia (CC BY-SA 4.0).