Giovanni d’Anna was a Flemish merchant who lived in Venice. His father, Martino d’Anna, was already an established member of the foreign merchant community in Venice; through his family’s noble status, Giovanni inherited good relations with the Venetian doges and the Hapsburgs. Giovanni was also said to be a close friend of Titian. In Ecce Homo, Titian painted Giovanni’s portrait among several other prominent figures of the time.
Brundin, Abigail, and Matthew Treherne. Forms of Faith in Sixteenth Century Italy. Burlington: Ashgate Publishing Ltd., 2009, p. 187.
Ridolfi, Carlo. The Life of Titian. University Park: Pennsylvania University State Press, 2010, 59.