Mercia

Mercia is the name of a kingdom in Albion that is ruled by Lord Bayard.

The kingdom was at war with Camelot for many years before Bayard and Uther Pendragon agreed to a peace treaty, which was almost upset when Nimueh framed Bayard for the attempted assassination of Arthur Pendragon. Uther's court physician Gaius uncovered the truth before Mercia's troops attacked Camelot for Bayard's imprisonment, and the two kingdom's presumably reached a peaceful settlement.