Marchers
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
In old English law
Noblemen who lived on the marshes of Wales or Scotland, and who, acoording to Camden, had their private laws, as if they had been petty kings; which were abolished by the statute 27 Hen. VIII. c.
26.
Called also "lords marchers."
Cowell.