The Barony-Marche of the Debatable Lands ("BMDL") is a branch of the Society for Creative Anachronism
an international organization dedicated to the study and recreation of the Middle Ages and early Renaissance. The BMDL includes Allegheny and Beaver Counties in
Pennsylvania, including the Pittsburgh, PA metropolitan area. The Debatable Lands is the oldest and one of the largest baronies in the
Kingdom of Æthelmearc
, the region covering western New York, most of Pennsylvania outside the
Harrisburg-Philadelphia corridor, and West Virginia.