Blazon

Shield: Per pale Azure and Gules, three lions rampant Argent.

Crest: A wyvern with wings endorsed Vert holding in the mouth a Sinister Hand couped at the wrist Gules.

Supporters: Dexter: a Panther Argent semé of Torteaux, Hurts and Pommes alternately, flames issuing from his mouth and ears Proper collared with a ducal coronet Azure; Sinister: A lion Argent armed and langued Gules and collared with a ducal coronet Gules.

Motto: Ung Je Serviray (One I will serve)

The Herberts, Earls of Pembroke, were Lords of Gower from 1468 to 1507.

Gallery
The Herbert arms in Swansea Guildhall.