Horatius Ondedei was born in
Gubbio,
Italy on 9 February 1630. He was ordained a deacon on 2 February 1684 and ordained a priest on 6 February 1684. On 10 April 1684, he was appointed during the papacy of
Pope Innocent XI as
Bishop of Urbania e Sant'Angelo in Vado. On 16 April 1684, he was consecrated bishop by
Alessandro Crescenzi (cardinal),
Cardinal-Priest of
Santa Prisca, with
Giacomo Altoviti,
Titular Patriarch of
Antioch, and
Odoardo Cibo,
Titular Archbishop of
Seleucia in Isauria, serving as co-consecrators. He served as Bishop of Urbania e Sant'Angelo in Vado until his death in March 1688. == References ==