Ippolito (I) d'Este was an Italian cardinal, and Archbishop of Esztergom. He was a member of the ducal House of Este of Ferrara, and was usually referred to as the Cardinal of Ferrara. Though a bishop of five separate dioceses, he was never consecrated a bishop. He spent much of his time supporting the ducal house of Ferrara and negotiating on their behalf with the Pope.
- Occupation
- Catholic priest
- Position held
- cardinal-deacon, apostolic administrator, apostolic administrator, apostolic administrator
- Citizenship
- Papal States
- Born
- March 20, 1479
- Died