Wihomarc

Wihomarc or Wiomarc'h was a Breton chieftain "who seemed to have greater authority than the other Breton leaders" and who revolted against Frankish overlordship in 822 and held on to his power until his death. His rebellion may have been incited by the creation of a Frankish county in Poutrocoet sometime between 818 and 820.