Giulio d'Este, illegitimate son of Italian noble (died 1561)

Giulio d'Este

Illegitimate son of Ercole I d'Este, Duke of Ferrara (1478-1561)

Giulio d'Este was the illegitimate son of Ercole I d'Este, Duke of Ferrara. He is known for the conflicts he had with his half brother, Ippolito d'Este, which culminated in a failed conspiracy.