Dundrennan Abbey, in Dundrennan, Scotland, near to Kirkcudbright, was a Cistercian monastery in the Romanesque architectural style, established in 1142 by Fergus of Galloway, King David I of Scotland (1124–53), and monks from Rievaulx Abbey. Though extensively ruined (the transepts are the main surviving parts), Dundrennan is noted for the purity and restraint of its architecture, reflecting the austere Cistercian ideal.