This article examines two bande dessinée versions of the Breton legend of the flooded city of Ker-Is, Robert Lortac’s 1943 À la découverte de Ker-Is (published in children’s magazine O lo lê) and Claude Auclair and Alain Deschamps’ 1981 Bran Ruz. It argues that through the continuation or appropriation of the legend, these comics offer ideologically filtered views of Bretonness and Brittany from two different politico-historical contexts, occupied France and the postcolonial era. The article also analyses how comic art can be used in productive ways to represent Brittany as a stateless culture, including through text/image reiteration or supplementarity, and using the double page for a bilingual parallel textual-visual practice. It concludes by suggesting that the study of internal colonialism and peripheries such as Brittany is an important addition to research into postcolonial comics.