Two months after her birth, on 22 November, the princess was baptized at the Basilica palatina di Santa Barbara with the names "Eleonora Anna Maria", in honor of her mother and her two surviving full-siblings, Anna de' Medici (who died in 1584 aged 14) and Marie de' Medici, future Queen consort of France and Navarre. The ceremony was conducted by Francesco, Bishop of Mantua (born Prince Annibale Gonzaga, from the Gazzuolo branch), and her godparents were Ferdinand III, Archduke of Inner Austria (her future husband as Holy Roman Emperor) –who was represented by Jakob Prandtner– and Margaret of Austria, Queen of Spain.