Pope Mark
4th-century pope

Pope Mark (Latin: Marcus) was the bishop of Rome from 18 January to his death on 7 October 336.
Little is known of Mark's early life. According to the Liber Pontificalis, he was a Roman, and his father's name was Priscus. Mark succeeded Sylvester I as pope on 18 January 336.
Some evidence suggests that the early lists of bishops and martyrs known as the Depositio episcoporum and Depositio martyrum were begun during his pontificate. According to the Liber Pontificalis, Pope Mark issued a constitution investing the bishop of Ostia with a pallium and confirming his power to consecrate newly elected popes. Likewise according to the Liber Pontificalis, Pope Mark is credited with the foundation of the Basilica of San Marco, a basilica in Rome, and a cemetery church over the Catacomb of Balbina, just outside the city on lands obtained as a donation from Emperor Constantine.
Mark died of natural causes on 7 October and was buried in the catacomb of Balbina. In 1048, his remains were removed to the town of Velletri, and in 1145 were relocated to the Basilica of San Marco in Rome, where they are kept in an urn under the altar. His feast day is celebrated on 7 October.
“Pope Mark” enters the record as 4th-century pope. Crown Archives preserves that source wording while asking what Pope, Mark and 4th-century can confirm, complicate or overturn.
Why this record matters
“Pope Mark” is worth following because a concise public description often conceals a longer documentary argument. Here, Pope, Mark and 4th-century provides the most credible route into that argument.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Aug 8, 2026. The linked authority identifier is Q132797. VIAF identifies the subject as 63537794. The Library of Congress control number is nb2007024710. 2 of 3 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1048 and 1145.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Pope Mark”, its source revision and the description used here.
- Expand the search: follow Pope Mark primary sources, Pope Mark archive and Pope research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Pope Mark”?
- What terminology or title could unlock a more precise catalogue search?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “Pope Mark” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.