"The French and the English call him Gwiffred Petit, but the Welsh call him Y Brenin Bychan"
Guivret le Petit's coat of arms
GNU Free Documentation LicenseGuivret le Petit's coat of arms - Credit: Chatsam

Gwiffred Petit is a version of  Guivret le petit, the dwarf who appears in Chrétien de Troyes’ ‘Erec et Énide’.

‘Y Brenin Bychan’ means ‘The Little King’.