The Sources (in
order first quoted)
| Author | Date | Title | Credibility (see below) |
| Claudian | c.400 | The Consulship of Stilicho | ***** |
| Nennius | c.800 | The History of Britain | ** |
| Anonymous | c.1060- | Welsh Genealogies and Pedigrees | ** |
| Claudian | c.405 | The Gothic Wars | ***** |
| Zosimus | c.510 | New History | **** |
| Procopius | c.555 | History of the Wars | **** |
| Gildas | c.545 | The Ruin of Britain (Gildas) | **** |
| Anonynous |
c.850 |
Bern Codex |
*** |
| Fastidius | c.410 | Letter to a widow | ***** |
| ? |
?1200 |
Chronicles of Anjou |
* |
| Rutilius Namatianus | 418-20 |
De Reditu Suo |
***** |
| Anonymous | c.891 | Anglo-Saxon Chronicle (ASC) | ** |
| Prosper of Aquitaine | 433 | Chronicle | ***** |
| Constantius | c.480 | Life of St. Germanus | **** |
| Anonymous | c.1000 | Irish Annals | *** |
| Anonymous | c.970 | Annales Cambriae (AC) | ** |
| Anonymous |
c.795 |
Anglian Genealogies |
*** |
| Anonymous | c.455 | Gallic Chronicle | **** |
| Bede | c.730 | The Ecclesiastical History of England (Bede) | *** |
| Geographer of Ravenna | ?700 | *** | |
| Anonymous | ?1060- | The Welsh Triads | * |
| Muirchu | ?675 | Life of St. Patrick | **** |
| St. Patrick | ?455 | Letter to Coroticus | ***** |
| William of Malmesbury | c.1143 | History of the Kings of England | * |
| Jordanes | c.555 | Gothic History | **** |
| Sidonius | c.469 | Letter to Riothamus | ***** |
| Sidonius | c.470 | Letter to Vincentius | ***** |
| Gregory of Tours | c.592 | History of the Franks | **** |
| Henry of Huntingdon | c.1135 | History of England | * |
| Sidonius | c.480 | Letter to Namatius | ***** |
| William of Leon | c.1017 | Life of St. Goeznovius | ** |
| Bede | c.720 | Chronica Majora | *** |
| Sidonius | c.474 | Letter to Ecdicius | ***** |
| Felix | c.730 | Life of St. Guthlac | *** |
| Leland | c.1540 | Itinerary | * |
| John of Glastonbury | c.1350 | Chronicle of Glastonbury Abbey | * |
| Adam of Bremen | 1075 | Gesta Hammaburgensis Ecclesiae Pontificum |
*** |
| Anonymous |
c.860 |
Annales Fuldenses |
*** |
| Anonymous |
c.800 |
Life of St. Dalmas of Rodez |
**** |
| [The Mabinogion] | ?1060 | The Dream of Rhonanbwy | * |
| Hywel | c.950 | Laws of Hywel | *** |
| Taliesin | c.565 | In praise of Cynan | **** |
| Roger of Wendover | c.1235 | Flowers of History | * |
| Gildas | c.571 | Penetentials of the Synod of Victory | ***** |
| Anonymous |
700s |
The Ruin |
** |
| Taliesin | c.579 | The Battle of Argoed LLwyfain | **** |
| Taliesin | c.580 | Death song of Owain | **** |
| Taliesin | c.580 | Urien of Yrechwydd | **** |
| Taliesin | c.585 | The battle of Gwen Ystrad | **** |
| Roger de Hoveden | c.1202 | Annals | * |
| Aneirin | c.600 | Y Gododdin | **** |
***** Absolutely reliable: From a contemporary witness;
almost certainly not corrupted in later transcriptions.
**** Fairly reliable: From a near-contemporary
witness, or contemporary non-witness; possibly corrupted.
*** Not reliable in detail but
probably correct in outline: Probably based on earlier written
accounts.
** Unreliable but
probably
having some basis in fact: Probably based on oral tradition.
* Totally
unreliable but possibly having some basis in fact: Based on fictional
or
untraceable sources.
Speculative
Lifetimes
of personages.
| Name | Birth | Death | Age | Notes |
| of Britain | ||||
| Vortigern/Catel | ?410 | c.474 | 64 | First recorded high-king of post-Roman Britain c.440-c.456 and c.470-c.474 |
| Vortimer | ?430 | c.470 | 40 | Son of Vortigern, high-king from c.456. Maybe identical to Riothamus |
| Cattegirn | ?432 | c.458 | 26 | Son of Vortigern, King of Powys c.456-458 |
| Pascent | ?435 | ?480 | 45 | Son of Vortigern, King of Builth from c.456 and King of Powys from c.458 |
| Ambrosius | ?417 | c.472 | 55 | Rival of Vortigern |
| Ambrosius Aurelianus | ?447 | ?506 | 59 | Son of Ambrosius, high-king/Dux Bellorum from c.475 |
| Arthur | ?475 | c.539 | 64 | Dux Bellorum then high-king from ?505, British leader at Badon |
| of Kent | ||||
| Hengest | ?415 | ?475 | 59 | First king of Kent from c.453. |
| Horsa | ?420 | c.458 | 38 | Brother of Hengest |
| Octha | ?435 | c.488 | 53 | Son of Hengest, leader of Bernician settlers c.454-c.475, then King of Kent |
| Rhonwen | ?437 | ?474 | 37 | Daughter of Hengest, wife of Vortigern from c.453 |
| Orric Oesc | ?460 | c.512 | 52 | King of Kent from c.488, founder of new dynasty |
| Octha | ?490 | ?540 | 50 | Son of Oesc, King of Kent from c.512 |
| Oermenric | ?520 | 565 | 45 | Son of Octha, King of Kent. |
| Aethelbert | 552 | 617 | 65 | Son of Oermenric, King of Kent from c.565 and Third Bretwalda after Ceawlin |
| of Gwynedd | ||||
| Cadwallon Longhand | ?475 | ?534 | 59 | King of Gwynedd |
| Maelgwn | ?505 | 549 | 44 | Son of Cadwallon, King of Gwynedd, married Brochfael's sister |
| Rhun | ?525 | ?570 | 45 | Son of Maelgwn , King of Gwynedd from 549 |
| Beli | ?545 | ?598 | 53 | Son of Rhun, King of Gwynedd, perhaps died at Catterick |
| Iacob | ?565 | c.610 | 45 | Son of Beli, King of Gwynedd |
| Cadfan | ?585 | c.625 | 40 | Son of Iacob, King of Gwynedd |
| Cadwallon | ?605 | 633 | 28 | Son of Cadfan, King of Gwynedd, slayer of Edwin. |
| Cadwalladr | ?630 | 684 | 54 | Son of Cadwallon, King of Gwynedd after Cadfael (?634-?655) |
| of Sussex | ||||
| Aelle | ?454 | c.518 | 64 | First King of Sussex from c.477, First Bretwalda, probable Saxon leader at Badon |
| Cymen | ?476 | ?530 | 54 | Son of Aelle, ?King of Sussex |
| Wlenking | ?505 | ?560 | 55 | ?Son of Cymen, ?King of Sussex |
| Cissa | ?535 | 590 | 55 | ?Son of Wlenking, King of Sussex |
| of Powys | ||||
| Cyngen | ?480 | ?520 | 40 | King of Powys, grandson of Pascent |
| Brochfael | ?500 | ?540 | 40 | Son of Cyngen, King of Powys. |
| Cynan garwyn | ?520 | ?575 | 55 | Son of Brochfael, King of Powys |
| Selyf | ?555 | c.610 | 55 | Son of Cynan, King of Powys |
| of Anglia/Mercia | ||||
| Icel | ?450 | ?500 | 50 | First King of the Angles in Britain from ?480 |
| Cnebba | ?480 | ?530 | 50 | Son of Icel |
| Cynewald | ?510 | ?560 | 50 | Son of Cnebba |
| Creoda | ?540 | 593 | 53 | Son of Cynewald, perhaps lost East Anglia to Uffa in 571, King of Mercia from 585 |
| Wybba | ?576 | 626 | 50 | Son of Creoda, King of Mercia |
| Penda | ?605 | 655 | 50 | Son of Wybba, King of Mercia, Slayer of Oswald |
| of York | ||||
| Coel the Old | ?375 | 440 | 65 | Last Dux Brittaniarum, First King of the North |
| Ceneu | ?415 | ?470 | 55 | Son of Coel, ?King of the North |
| Gurgust Letlum | ?450 | ?505 | 55 | Son of Ceneu, ?King of the North |
| Eliffer | ?485 | ?540 | 55 | Son of Gurgust, King of York only (not Rheged or Elmet) |
| Peredur | ?520 | ?582 | 62 | Son of Eliffer, joint King of York |
| Gwrgi | ?522 | ?582 | 60 | Son of Eliffer, joint King of York |
| Gwgon Gwron | ?555 | ? | ? | Son of Peredur, failed to recover his kingdom from Ella |
| of Wessex | ||||
| Cerdic | ?456 | 518 | 62 | First leader of the Gewissae from c.495 |
| Creoda | ?484 | 534 | 50 | Son of Cerdic, leader of the Gewissae |
| Cynric | ?512 | 560 | 48 | Son of Creoda, leader of the Gewissae |
| Ceawlin | ?538 | 593 | 55 | Son of Cynric, King of West Saxons, Second Bretwalda after Aelle |
| Cuthwulf | ?540 | 571 | 31 | Son of Cynric |
| Cuthwine | ?560 | 584 | 24 | Son of Ceawlin |
| Ceolwulf | ?570 | 611 | 41 | Son of Cuthwulf, King of West Saxons from 597 |
| of Rheged | ||||
| Merchianum | ?480 | ?530 | 50 | Perhaps first King of Rheged, Son of Gurgust |
| Cynfarch | ?505 | ?555 | 50 | Son of Merchianum, King of Rheged |
| Elidr | ?515 | ?560 | 45 | Son of Merchianum, King of South Rheged, married Maelgwn's daughter, slain in Gwynedd probably by Rhun |
| Urien | ?530 | ?590 | 60 | Son of Cynfarch, King of Rheged, Northern British leader |
| LLywarch the Old | ?545 | ?615 | 70 | Son of Elidr, King of South Rheged, lost his kingdom to Aethelfirth |
| Owain | ?550 | ?585 | 35 | Son of Urien |
| Rhun | ?565 | ?630 | 65 | Son of Urien, baptizer of Edwin in c.626 |
| Rhwyth | ?590 | ? | ? | Son of Rhun |
| Rhieinfellt | ?615 | ? | ? | Daughter of Rhwyth, wife of Oswy from c.633 |
| of East Anglia | ||||
| Uffa | ?540 | 578 | 38 | King of East Anglia from 571 |
| Titilus | ?550 | 599 | 49 | Brother of Uffa, King of East Anglia |
| Redwald | ?580 | 625 | 45 | Son of Titilus, King of East Anglia, Fourth Bretwalda after Aethelbert, Slayer of Aethelfirth |
| of Elmet | ||||
| Masguic clop | ?480 | ?535 | 55 | Perhaps first King of Elmet, Son of Gurgust |
| Laenauc | ?510 | ?565 | 55 | Son of Masguic, King of Elmet |
| Gwallawg | ?540 | ?595 | 55 | Son of Laenauc, King of Elmet, fought with Urien against Angles |
| Ceredic | ?570 | ?625 | 55 | Son of Gwallawg, King of Elmet, lost his kingdom to Edwin |
| of Dent | ||||
| Mar | ?445 | ?500 | 55 | Perhaps first King of Dent, Son of Ceneu |
| Arthwys | ?480 | ?535 | 55 | Son of Mar |
| Pabo | ?510 | ?565 | 55 | Pillar of Britain, son of Arthwys |
| Dunaut | ?545 | 597 | 52 | Son of Pabo, lost his kingdom to Aethelfirth |
| of Bernicia | ||||
| Eosa |
?455 |
?505 |
50 |
First of the line to come to
Britain |
| Eoppa |
?485 |
?535 |
50 |
Son of Eosa |
| Ida | ?515 | 559 | 44 | First king of the Bernicians from c.547 |
| Aethelric | ?540 | 572 | 32 | Son of Ida, King of Bernicians from 568. |
| Aethelfirth | ?565 | 617 | 52 | Son of Aethelric, First King of Northumbria (Bernicia and Deira) from 593, slayer of Selyf |
| Oswald | 605 | 642 | 37 | Son of Aethelfirth, slayer of Cadwallon, King of Northumbria after Edwin |
| Oswy | 612 | 670 | 58 | Son of Aethelfirth, King of Northumbria after Oswald, Slayer of Penda |
| of Strathclyde | ||||
| Ceretic | ?405 | ?460 | 55 | King of Strathclyde, raider of St. Patrick's Ireland |
| Cinuit | ?430 | ?485 | 55 | son of Ceretic, King of Strathclyde |
| Dumgual hen | ?455 | ?520 | 65 | son of Cinuit, King of Strathclyde |
| Clinoch | ?485 | ?540 | 55 | son of Dumgual hen, ?King of Strathclyde |
| Cinbelin | ?490 | ?540 | 50 | son of Dumgual hen |
| Tutagual | ?510 | ?560 | 50 | son of Clinoch, King of Strathclyde |
| Clitnoy Eidin | ?520 | ?570 | 50 | son of Cinbelin, Ruler of Dunedin, raider of Rhun's Gwynedd |
| Rhyderch hen | ?542 | 612 | 70 | son of Tutagual, King of Strathclyde, raider of Rhun's Gwynedd, and fought with Urien against the Angles |
| of Deira | ||||
| Soemil |
?415 |
?465 |
50 |
? First leader of Deirans from c.443 |
| Westerfalcon | ?440 | ?490 | 50 | Son of Soemil |
| Wilgis | ?465 | ?515 | 50 | Son of Westerfalcon |
| Usfrey | ?490 | ?540 | 50 | Son of Wilgis |
| Yffe | ?515 | 560 | 45 | Son of Usfrey |
| Ella | ?540 | 588 | 48 | Son of Yffe, King of the Deirans from 560 |
| Edwin | 586 | 633 | 47 | Son of Ella, slayer of and successor to Aethelfirth, King of Northumbria |
| of Dyfed | ||||
| Agricola | ?470 | ?520 | 50 | First British King of Dyfed |
| Vortipor | ?490 | ?545 | 55 | Son of Agricola, King of Dyfed |
| Cincar | ?515 | ?565 | 50 | Son of Vortipor, King of Dyfed |
| Petr | ?545 | ?590 | 45 | Son of Cincar, King of Dyfed |
| Arthur | ?570 | ?615 | 45 | Son of Petr, King of Dyfed, probably named after Arthur |
| Date | Source | Size | Corrected * | Origin | Comments |
| c.411 |
Chronicle of Anjou |
1000 |
1000 |
Armorican/British |
Took Blois in Gaul. |
| c.449 | Nennius | 120 (3 keels) | 120 | Saxon | Invited to Thanet. |
| c.453 | Nennius | 640 (16 keels) | 640 | Saxon | Invited to Kent. |
| c.454 | Nennius | 1600 (40 keels) | 1600 | Saxon | Defeated Picts. |
| c.456 | ASC | 4000 | 400 | Romano-British | Slain by Saxons. |
| 469 | Jordanes | 12 000 | 1200 | Romano-British | Defeated by Visigoths. |
| 471 | Sidonius | 18 horsemen | 18 horsemen | Romano-Gaulish | Defeated below. |
| >2000 | >200 | Visigoths | Defeated by above. | ||
| 477 | ASC | 120 (3 keels) | 120 | South Saxons | Defeated British. |
| 495 | ASC | 200 (5 keels) | 200 | West Saxons | Fought with British. |
| 498 | Irish Annals | 150 | 150 | Scots | Went to Britain from Ireland. |
| 501 | ASC | 80 (2 keels) | 80 | West Saxons | Fought with British. |
| 508 | ASC | 5000 | 500 | British | Slain by West Saxons. |
| 518 | Nennius | 960 | 100 | Saxon | Slain by one charge of British Cavalry. |
| 540 | Procopius | 100 000 (400 keels) | 1600 (40 keels) | Angle | Defeated the Varni in Germany |
| 575 | Triads | 2100 | 2100 | British (Carlisle) | Defeated by other British. |
| 598 | Aneirin | 300 horsemen | 300 horsemen | British (Gododdin) | Defeated by below. |
| 10 000 | 1000 | Northumbrians | Defeated above. | ||
| 614 | ASC | 2046 | 200 | British | Slain by West Saxons |
| 655 | ASC | 30 nobles | 30 nobles | Mercian | Slain by Northumbrians |
From these figures one can give the following very rough estimates for the sizes of armies in Arthurian Britain:
Infantry: 100--2000, perhaps typically around 500.
Cavalry : 20--400, perhaps typically around 100.