Beli Mawr
legendary figure
Beli Mawr (Welsh for 'Beli the Great') was an ancestor figure in Middle Welsh literature and genealogies. He is the father of Cassivellaunus, Arianrhod, Lludd Llaw Eraint, Llefelys, and Afallach. In medieval genealogies, he is listed as the son or husband of Anna, cousin of Mary, mother of Jesus. According to the Welsh Triads, Beli and Dôn were the parents of Arianrhod, but the mother of Beli's other children—and the father of Dôn's other children—is not mentioned in the medieval Welsh literature. Several royal lines in medieval Wales traced their ancestry to Beli. The Mabinogi names Penarddun as a daughter of Beli Mawr, but the genealogy is confused; it is possible she was meant to be his sister rather than daughter.
Beli and Belenus
The origin of the name Beli is still a matter of debate among scholars. The most popular hypothesis sees the name Beli as a Middle Welsh reflex of the Gaulish and Brittonic divine name Belenus (also attested as a personal name), but a more recent alternative is that proposed by Harvard Celticist John T. Koch, who suggests that Beli derives from a Proto-Celtic name Belgius or Bolgios borne by one of the chieftains who led the Gallic invasion of Macedonia in 280–279 BCE against King Ptolemy Ceraunus.
Ptolemy was a member of the Ptolemaic dynasty, of which the famed Cleopatra was a member of. It was founded by his father, Ptolemy I Soter, a Greek general and the successor of Alexander the Great.
“Beli Mawr” enters the record as legendary figure. Crown Archives preserves that source wording while asking what Beli, Mawr and legendary can confirm, complicate or overturn.
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“Beli Mawr” is worth following because a concise public description often conceals a longer documentary argument. Here, Beli, Mawr and legendary provides the most credible route into that argument.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated May 29, 2026. The linked authority identifier is Q815575. None of the 0 selected statements returned an explicit reference.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. 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.
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This entry incorporates text from “Beli Mawr” 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.