Given the partial list of antipopes & interregna, should we be surprised to see another in our day? "What's past is prologue."
Natalius - antipope? (199-200)
St. Hippolytus of Rome - antipope (217-235)
Novatian, Latin Novatianus - antipope (251-251)
Felix (II) - antipope (355-358)
Ursinus - antipope (366-367)
Eulalius - antipope (418-419)
Laurentius, English Lawrence - antipope in 498 and from 501 to about 505/507
Dioscorus - pope or antipope, for 23 days in 530
Theodore - antipope from 21 September to 15 December 687
Paschal (I) - antipope against both the rival antipope Theodore and the legitimate pope St. Sergius I during 687
Constantine (II) - antipope (767-768)
Philip - antipope in July 768
John - antipope (844-844)
Anastasius the Librarian, Latin Anastasius Bibliothecarius - antipope (855-855)
Christopher - antipope (903-904)
Leo VIII - pope, or antipope, from 963 to 965
Boniface VII - pope, or antipope, from June to July 974 and from August 984 to July 985
John XVI - antipope (997-998)
Gregory (VI) - antipope (1012-1012)
Benedict (X) - antipope (1058-1059)
Honorius (II) - antipope (1061-1064)
Clement (III) - antipope (1080-1100)
Theodoric - antipope (1100-1102)
Albert, also called Adalbert or Aleric - antipope (1102-1102)
Sylvester (IV) - antipope (1105-1111)
Gregory (VIII) - antipope (1118-1121)
Celestine (II) - antipope (1124-1124)
Anacletus (II) - antipope (1130-1138)
Victor (IV), original name Gregory Conti - antipope (1138-1138)
Victor (IV), original name Ottaviano De Monticelli - antipope (1159-1164)
Paschal (III) - antipope (1164 to 1168)
Calixtus (III) - antipope (1168-1178)
Innocent (III) - antipope (1179-1180)
* Interregnum - Sede vacante (29 November 1268 - 1 September 1271)
[2 years, 276 days]
* Interregnum - Sede vacante (4 April 1292 - 5 July 1294)
[2 years, 92 days]
* Interregnum - Sede vacante (20 April 1314 - 7 August 1316)
[2 years, 79 days]
Nicholas (V) - antipope (1328-1330)
Clement (VII) - antipope (1378-1394)
Benedict (XIII) - antipope (1394-1423)
Alexander (V) - antipope (1409-1410)
John (XXIII) - antipope (1410-1415)
* Interregnum - Sede vacante (4 July 1415 - 11 November 1417)
[2 years, 136 days]
Clement (VIII) - antipope (1423-1429)
Felix (V) also called Amadeus VIII of Savoy - antipope (1439-1449)
* Interregnum - Sede vacante (29 August 1799 - 14 March 1800)
[197 days]
Sources:
Papacy - Popes, Antipopes, Succession |
List of popes - Wikipedia |
CATHOLIC ENCYCLOPEDIA: List of Popes |
St. Hippolytus of Rome - antipope (217-235)
Novatian, Latin Novatianus - antipope (251-251)
Felix (II) - antipope (355-358)
Ursinus - antipope (366-367)
Eulalius - antipope (418-419)
Laurentius, English Lawrence - antipope in 498 and from 501 to about 505/507
Dioscorus - pope or antipope, for 23 days in 530
Theodore - antipope from 21 September to 15 December 687
Paschal (I) - antipope against both the rival antipope Theodore and the legitimate pope St. Sergius I during 687
Constantine (II) - antipope (767-768)
Philip - antipope in July 768
John - antipope (844-844)
Anastasius the Librarian, Latin Anastasius Bibliothecarius - antipope (855-855)
Christopher - antipope (903-904)
Leo VIII - pope, or antipope, from 963 to 965
Boniface VII - pope, or antipope, from June to July 974 and from August 984 to July 985
John XVI - antipope (997-998)
Gregory (VI) - antipope (1012-1012)
Benedict (X) - antipope (1058-1059)
Honorius (II) - antipope (1061-1064)
Clement (III) - antipope (1080-1100)
Theodoric - antipope (1100-1102)
Albert, also called Adalbert or Aleric - antipope (1102-1102)
Sylvester (IV) - antipope (1105-1111)
Gregory (VIII) - antipope (1118-1121)
Celestine (II) - antipope (1124-1124)
Anacletus (II) - antipope (1130-1138)
Victor (IV), original name Gregory Conti - antipope (1138-1138)
Victor (IV), original name Ottaviano De Monticelli - antipope (1159-1164)
Paschal (III) - antipope (1164 to 1168)
Calixtus (III) - antipope (1168-1178)
Innocent (III) - antipope (1179-1180)
* Interregnum - Sede vacante (29 November 1268 - 1 September 1271)
[2 years, 276 days]
* Interregnum - Sede vacante (4 April 1292 - 5 July 1294)
[2 years, 92 days]
* Interregnum - Sede vacante (20 April 1314 - 7 August 1316)
[2 years, 79 days]
Nicholas (V) - antipope (1328-1330)
Clement (VII) - antipope (1378-1394)
Benedict (XIII) - antipope (1394-1423)
Alexander (V) - antipope (1409-1410)
John (XXIII) - antipope (1410-1415)
* Interregnum - Sede vacante (4 July 1415 - 11 November 1417)
[2 years, 136 days]
Clement (VIII) - antipope (1423-1429)
Felix (V) also called Amadeus VIII of Savoy - antipope (1439-1449)
* Interregnum - Sede vacante (29 August 1799 - 14 March 1800)
[197 days]
Sources:
Papacy - Popes, Antipopes, Succession |
List of popes - Wikipedia |
CATHOLIC ENCYCLOPEDIA: List of Popes |