C 5, 260s1
16	kevynir tudur vab kynverth

C 7, 810s12
16	kefnir dvdvr ab kyfnerth

CM 5, 336s8
16	cefnir cefnir tydyr ap cyfnerth

H 26, 356s7
16	cefnir Dudur ap Cyfnerth

G 1, 130vs131r
16	kefnir dydvr ab kyfnerth

M 212, rhif 17
16	kefnir dvdvr ap kyfnerth

Ll 134, 151vs152r
16	kefn hir i daudir ap kyfnerth

Ll 48, 79s81
16	kefn hir i dudur ap kyfnerth

BL Add. 14876, 6r
16	cefn hir Dudur fab cyfnerth