Ippolito (I) d'Este (Hungarian: Estei Hippolit; March 20, 1479 – September 3, 1520) was an Italian Roman Catholic cardinal, and Archbishop of Esztergom. He was a member of the House of Este.
Born in Ferrara, he was the son of Duke Ercole I d'Este and Eleanor of Naples and was immediately educated for a career in the Church. In 1485, at the age of six, he was already at the head of an abbacy, and two years later, thanks to his aunt Beatrix of Aragon, who had married King Matthias Corvinus of Hungary, he was named archbishop of Esztergom in Hungary. The latter election was not confirmed by Pope Innocent VIII until he was eighteen; in the meantime Ippolito studied for seven years at the Hungarian court. http://en.wikipedia.org/wiki/Ippolito_d'Este acc. 23/01/15