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==Sumber==
{{Portal|Biografi|Sejarah|Kristen}}
* {{cite book |last=Duffy |first=Eamon |author-link=Eamon Duffy |year=1997 |title=Saints & Sinners: A History of the Popes |publisher=Yale University Press |location=New Haven |isbn=978-0-30-007332-4 |url=https://archive.org/details/saintssinnershis00duff_0 |url-access=registration |ref=harv}}
*{{cite encyclopedia|year=2002a|last=Durliat|first=Jean|title=Sisinnius|encyclopedia=The Papacy: An Encyclopedia|editor-first=Phillipe|editor-last=Levillain|volume=3}}{{sfn|Levillain|2002c}}
* {{cite book |last1=Kelly |first1=J. N. D. |author1-link=John Norman Davidson Kelly |last2=Walsh |first2=M. J. |year=1988 |orig-year=1986 |title=Oxford Dictionary of Popes |publisher=[[Oxford University Press]] |location=Oxford |oclc=59172482 |isbn=978-0-19-282085-3 |url=https://archive.org/details/oxforddictionar000kell |url-access=registration |ref=harv }}
*{{cite encyclopedia|year=2002b|last=Durliat|first=Jean|title=Constantine I|encyclopedia=The Papacy: An Encyclopedia|editor-first=Phillipe|editor-last=Levillain|volume=1}}{{sfn|Levillain|2002d}}
* {{cite book |editor-last=Levillain |editor-first=Philippe |editor-link=Philippe Levillain |year=2002a |title=The Papacy: An Encyclopedia |volume=1 |publisher=[[Routledge]] |location=New York City |oclc=47237751 |isbn=0-415-92228-3 |url=https://archive.org/details/papacy00phil_1 |url-access=registration |ref=harv }} ▼* {{cite book |editor-lastlast1=LevillainKelly |editorfirst1=J. N. D. |author1-firstlink=PhilippeJohn Norman Davidson Kelly |yearlast2=2002bWalsh |titlefirst2=TheM. Papacy:J. an|year=1988 Encyclopedia|orig-year=1986 |volumetitle=3Oxford Dictionary of Popes |publisher=Routledge[[Oxford University Press]] |location=New York CityOxford |oclc=4723775159172482 |isbn=978-0-41519-92228282085-3 |url=https://archive.org/details/papacy00phil/page/n3/mode/2upoxforddictionar000kell |url-access=registration |ref=harv}}
* {{cite book |editor-last=McBrienLevillain |editor-first=Richard P.Philippe |authoreditor-link=RichardPhilippe McBrienLevillain |year=20002002c |title=LivesThe ofPapacy: theAn PopesEncyclopedia |volume=1 |publisher=[[HarperCollinsRoutledge]] |location=New York City |oclc=4345829147237751 |isbn=978-0-06415-06530492228-03 |url=https://archive.org/details/livesofpopes00mcbrpapacy00phil_1 |url-access=registration |ref=harv}}
* {{cite book |editor-last=McBrienLevillain |editor-first=Richard P.Philippe |year=20062002d |title=The PocketPapacy: GuideAn toEncyclopedia the Popes|volume=3 |publisher=HarperCollinsRoutledge |location=SanNew York City |oclc=47237751 Francisco|isbn=00611377310-415-92228-3 |url=https://archive.org/details/pocketguidetopop0000mcbrpapacy00phil/page/4n3/mode/2up |url-access=registration |ref=harv }}
* {{cite book |last=ReardonMcBrien |first=WendyRichard JP. |author-link=Richard McBrien |year=20042000 |title=The DeathsLives of the Popes |publisher=[[McFarland & Co.HarperCollins]] |location=Jefferson,New NorthYork CarolinaCity |oclc=5584552443458291 |isbn=978-0-786406-1527065304-40 |url=https://archive.org/details/deathsofpopes00wendlivesofpopes00mcbr |url-access=registration |ref=harv }}
* {{cite book |last1last=RichardsMcBrien |first1first=JeffreyRichard |author-link=Jeffrey Richards (sejarawan)P. |year=19792006 |title=The PopesPocket andGuide the Papacy into the Early Middle Ages, 476-752Popes |publisher=[[Routledge]] & Kegan Paul HarperCollins|location=London |oclc=4952990San Francisco|isbn=0-7100-0098-7 0061137731|url=https://archive.org/details/popespapacyinear0000richpocketguidetopop0000mcbr/page/4/mode/2up |url-access=registration |ref=harv }}
▲* {{cite book | editor-last= LevillainReardon | editor-first= PhilippeWendy |editor-link=Philippe LevillainJ. |year= 2002a2004 |title=The Papacy:Deaths Anof Encyclopediathe |volume=1Popes |publisher=[[ RoutledgeMcFarland & Co.]] |location= NewJefferson, YorkNorth CityCarolina |oclc= 4723775155845524 |isbn=0- 4157864- 922281527- 34 |url=https://archive.org/details/ papacy00phil_1deathsofpopes00wend |url-access=registration |ref=harv }}
* {{cite book |last1=Richards |first1=Jeffrey |author-link=Jeffrey Richards |year=1979 |title=The Popes and the Papacy in the Early Middle Ages, 476-752 |publisher=[[Routledge|Routledge & Kegan Paul]] |location=London |oclc=4952990 |isbn=0-7100-0098-7 |url=https://archive.org/details/popespapacyinear0000rich |url-access=registration }}
{{
Paus
| Pendahulu = [[Paus Yohanes VII|Yohanes VII]]
| 