| Type: | Bishop |
| Honorific-Prefix: | Most Reverend |
| Aegidius Ursinus de Vivere | |
| Titular Patriarch of Jerusalem | |
| Church: | Catholic Church |
| Term: | 1641–1647 |
| Predecessor: | Tegrimus Tegrimi |
| Successor: | Camillo Massimi |
| Ordination: | 23 April 1641 |
| Consecration: | 28 April 1641 |
| Consecrated By: | Antonio Marcello Barberini |
| Birth Date: | 1577 or 1598 |
| Birth Place: | Liège, Prince-Bishopric of Liège |
| Death Date: | 17 April 1647 |
Aegidius Ursinus de Vivere or Aegidius Ursinus de Vivariis (died 17 April 1647) was a Roman Catholic prelate who served as Titular Patriarch of Jerusalem (1641–1647).[1]
Aegidius Ursinus de Vivere was born in Liège, Prince-Bishopric of Liège in 1577[2] or 1598.On 15 April 1641, he was appointed during the papacy of Pope Urban VIII as Titular Patriarch of Jerusalem.On 23 April 1641, and ordained a priest and on 28 Apr 1641, he was consecrated bishop by Antonio Marcello Barberini, Cardinal-Priest of San Pietro in Vincoli, with Faustus Poli, Titular Archbishop of Amasea, and Celso Zani, Bishop Emeritus of Città della Pieve, serving as co-consecrators. He served as Titular Patriarch of Jerusalem until his death on 17 April 1647.