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Pope John XVII

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Papa Joao XVII
Papacy began May 16, 1003
Papacy ended November 6, 1003
Predecessor Silvester II
Successor John XVIII
Personal details
Birth name John Sicco
Born ???
Rome, Papal States
Died November 6, 1003
Rome, Papal States, Holy Roman Empire
Other Popes named John


John XVII (died December, 1003), born John Sicco, and the son of another John Sicco[1], was born in the region of Rome then referred to as Biveretica[2]. He succeeded Pope Silvester II (999–1003) as Pope on May 16, 1003, but died less than six months later.

John XVII was nominated to the papacy by John Crescentius, a Roman noble who held power in the city in opposition to Emperor Otto III (983–1002). John XVII's successor, Pope John XVIII (1004–09), was also selected by Crescentius.

John died on November 6, 1003, and was buried in the Lateran Basilica between the two doors of the principal façade. According to John the Deacon, his epitaph began by stating that “here is the tomb of the supreme John, who is said to be Pope, for so he was called.”[3]


Before entering the priesthood, Sicco had been married and had three sons who also entered Holy Orders. They were:

Confusion over Ordinals

The previous legitimate Pope John is generally considered to be John XV (985–996). John XVI (997–998) was an antipope, according to conventional wisdom, and thus his regnal number XVI should have been reused. But this did not occur, and the sequencing has never been corrected.


This article incorporates text from the Encyclopædia Britannica, Eleventh Edition, a publication now in the public domain.

  • Wikisource-logo "Pope John XVII" in the 1913 Catholic Encyclopedia.
  • Mann, Horace K., The Lives of the Popes in the Early Middle Ages, Volume 5: The Popes In The Days of Feudal Anarchy, from Formosus to Damasus II, Part 2 (London, 1910)


  1. Mann, pg 121
  2. Mann, pg 122
  3. Mann, pg 124
Catholic Church titles
Preceded by
Silvester II
Succeeded by

Popes of the Roman Catholic Church
PeterLinusAnacletusClement IEvaristusAlexander ISixtus ITelesphorusHyginusPius IAnicetusSoterEleuterusVictor IZephyrinusCallixtus IUrban IPontianAnterusFabianCorneliusLucius IStephen ISixtus IIDionysiusFelix IEutychianCaiusMarcellinusMarcellus IEusebiusMiltiadesSilvester IMarkJulius ILiberiusDamasus ISiriciusAnastasius IInnocent IZosimusBoniface ICelestine ISixtus IIILeo IHilariusSimpliciusFelix IIIGelasius IAnastasius IISymmachusHormisdasJohn IFelix IVBoniface IIJohn IIAgapetus ISilveriusVigiliusPelagius IJohn IIIBenedict IPelagius IIGregory ISabinianBoniface IIIBoniface IVAdeodatus IBoniface VHonorius ISeverinusJohn IVTheodore IMartin IEugene IVitalianAdeodatus IIDonusAgathoLeo IIBenedict IIJohn VCononSergius IJohn VIJohn VIISisinniusConstantineGregory IIGregory IIIZacharyStephen IIPaul IStephen IIIAdrian ILeo IIIStephen IVPaschal IEugene IIValentineGregory IVSergius IILeo IVBenedict IIINicholas IAdrian IIJohn VIIIMarinus IAdrian IIIStephen VFormosusBoniface VIStephen VIRomanusTheodore IIJohn IXBenedict IVLeo VSergius IIIAnastasius IIILandoJohn XLeo VIStephen VIIJohn XILeo VIIStephen VIIIMarinus IIAgapetus IIJohn XIILeo VIIIBenedict VJohn XIIIBenedict VIBenedict VIIJohn XIVJohn XVGregory VSilvester IIJohn XVIIJohn XVIIISergius IVBenedict VIIIJohn XIXBenedict IXSilvester IIIBenedict IXGregory VIClement IIBenedict IXDamasus IILeo IXVictor IIStephen IXNicholas IIAlexander IIGregory VIIVictor IIIUrban IIPaschal IIGelasius IICallixtus IIHonorius IIInnocent IICelestine IILucius IIEugene IIIAnastasius IVAdrian IVAlexander IIILucius IIIUrban IIIGregory VIIIClement IIICelestine IIIInnocent IIIHonorius IIIGregory IXCelestine IVInnocent IVAlexander IVUrban IVClement IVGregory XInnocent VAdrian VJohn XXINicholas IIIMartin IVHonorius IVNicholas IVCelestine VBoniface VIIIBenedict XIClement VJohn XXIIBenedict XIIClement VIInnocent VIUrban VGregory XIUrban VIBoniface IXInnocent VIIGregory XIIMartin VEugene IVNicholas VCallixtus IIIPius IIPaul IISixtus IVInnocent VIIIAlexander VIPius IIIJulius IILeo XAdrian VIClement VIIPaul IIIJulius IIIMarcellus IIPaul IVPius IVPius VGregory XIIISixtus VUrban VIIGregory XIVInnocent IXClement VIIILeo XIPaul VGregory XVUrban VIIIInnocent XAlexander VIIClement IXClement XInnocent XIAlexander VIIIInnocent XIIClement XIInnocent XIIIBenedict XIIIClement XIIBenedict XIVClement XIIIClement XIVPius VIPius VIILeo XIIPius VIIIGregory XVIPius IXLeo XIIIPius XBenedict XVPius XIPius XIIJohn XXIIIPaul VIJohn Paul IJohn Paul IIBenedict XVI

af:Pous Johannes XVII

be:Ян XVII, папа рымскі ca:Joan XVII cs:Jan XVII.fa:ژان هفدهمgl:Xoán XVII, papa ko:교황 요한 17세 hr:Ivan XVII. id:Paus Yohanes XVIIjv:Paus Yohanes XVII sw:Papa Yohane XVII la:Ioannes XVII lt:Jonas XVII hu:XVII. János pápa mk:Папа Јован XVIIja:ヨハネス17世 (ローマ教皇)pt:Papa João XVII ro:Papa Ioan al XVII-lea ru:Иоанн XVII (папа римский) fi:Johannes XVII sv:Johannes XVII tl:Juan XVII th:สมเด็จพระสันตะปาปาจอห์นที่ 17 uk:Іоанн XVII war:Papa Juan XVII zh:若望十七世

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