| AP BRAN, Protage Penardun | | B. 11 | | |
| AP BRAN - CARADOC, PENDRAGON GWEIRYDD, Caractacus | | B. ABT 6 | | D. ABT 50 |
| AP BRAN FENDIGAID, Sadwr | | | | |
| AP BROCHWEL, Seisyll | | B. ABT 945 | | |
| AP BROCHWEL I, Selyf I of Powys | | B. ABT 850 | | |
| AP BROCHWEL II, Cadell | | B. ABT 936 | | D. 1010 |
| AP BRYCHAN, Brychan | | | | |
| AP CADFAN, Gwrfawr | | B. ABT 358 | | D. ABT 415 |
| AP CARADOG, Eurgen | | | | |
| AP CARADOG, Marius Emeurig Cyllin of the Britons | | | | D. 128 |
| AP CARRADOG, Marius Emeurig Cyllin | | | | |
| AP CEIN, Gwyndog | | B. ABT 235 | | D. ABT 345 |
| AP CENEU, Mor Maeswig of Northern Britain | | B. ABT 418 | | D. ABT 520 |
| AP COEL, Caradawc | | | | |
| AP CUNEDDA, Dogfael King of Dogfeiling | | B. ABT 424 | | D. 443 |
| AP CUNEDDA, Dunod King of Dunoding | | B. ABT 420 | | D. ABT 438 |
| AP CUNEDDA, Edern King of Edeyrnion | | B. ABT 425 | | D. 500 |
| AP CUNEDDA, Einion Yrth King of Gwynedd | | B. ABT 423 | | D. ABT 500 |
| AP CUNEDDA, Osfael King of Osmaeliog | | B. ABT 430 | | |
| AP CUNEDDA, Tybion | | B. ABT 417 | | D. ABT 440 |
| AP CUNEDDA, Ysfael Gwron King of Ysfeillion | | B. 418 | | D. 29 NOV 436 |
| AP CUNNEDA, Tegeingle | | B. 426 | | |
| AP CUNNEDDA, Ceredig King of Ceredigion | | B. ABT 421 | | D. ABT 503 |
| AP CUNOBELLIN KING OF THE CATUVELLAUNI BRITAIN, Arvirargus | | | | |
| AP CWRRIG, Gwrrdwfn of Wales | | B. 160 | | |
| AP CYLLIN, Coel | | B. 120 | | |
| AP CYLLIN, Owain of the Silures | | B. ABT 100 | | D. ABT 150 |
| AP CYLLIN, Owain | | B. ABT 80 | | D. AFT 150 |
| AP CYNAN, Cadfan , of Dumnonia | | B. 325 | | D. 405 |
| AP CYNAN, Gradlon Maw | | B. 330 | | |