Sisillius III () was a legendary king of the

Britons British people or Britons, also known colloquially as Brits, are the citizens of the United Kingdom of Great Britain and Northern Ireland, the British Overseas Territories, and the Crown dependencies.: British nationality law governs m ...

as accounted by

Geoffrey of Monmouth Geoffrey of Monmouth ( la, Galfridus Monemutensis, Galfridus Arturus, cy, Gruffudd ap Arthur, Sieffre o Fynwy; 1095 – 1155) was a British cleric from Monmouth, Wales and one of the major figures in the development of British historiograph ...

. He was preceded by Oenus and succeeded by

Beldgabred Beldgabred () was a legendary king of the Britons as accounted by Geoffrey of Monmouth. He was preceded by Sisillius III and succeeded by his brother Archmail Archmail () was a legendary king of the Britons as accounted by Geoffrey of Monmouth. ...

. He shares his name with one of the sons of

Ebraucus Ebraucus ( cy, Efrawg/Efrog) was a legendary king of the Britons, as recounted by Geoffrey of Monmouth. He was the son of King Mempricius before he abandoned the family. Following the death of his father, Mempricius, he became king and reigned 3 ...

and his ancestors

Sisillius II Sisillius II (''Welsh:'' ''Seisyllt map Kyhylyn'') was a legendary king of the Britons as recounted by Geoffrey of Monmouth. Legendary account Sillius II was the son of King Guithelin and Queen Marcia Queen Marcia was the legendary third femal ...

and

Sisillius I Sisillius (''Welsh:'' Saessyllt) was the name of three legendary Kings of the Britons as accounted by Geoffrey of Monmouth: *Sisillius, one of the younger sons of Ebraucus * Sisillius I, successor of King Gurgustius * Sisillius II, son of King Gui ...

References

{{DEFAULTSORT:Sisillius Iii Legendary British kings