Father: Emperor Ferdinand I
Mother: Anna of Bohemia & Hungary
Husband: Francesco I de' Medici
Married: 1565
Age: 18
Children: Eleanora (1566/67-1611), Romola (1568), Anna (1569-1584),
Isabella (1571-72), Lucrezia, Maria (1575-1642),
Queen of France, Filippo (1577-1582)
Died: 1578
Age: 31
In his way her father-in-law was kind to her. He had the courtyard of the Palazzo Vecchio specially decorated for her; the lunettes were painted with murals of Austrian towns by pupils of Vasari, and Verocchio's gay fountain of the little urchin with a spouting fish was brought down from the Careggi villa where it had
been set up in the garden by Lorenzo il Magnifico.
In twelve years of marriage, she gave birth to eight children; then, on 10 April 1578 aged only thirty-one, she died in Florence. Francesco then married his mistress, Bianca Capello.
http://worldroots.com/brigitte/royal/bio/johannaaustriabio1547.html