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Ph van Gulpen Burg Rode Herzogenrath. en View of the now ruined castle of Herzogenrath near Aachen Germany and Kerkrade the Netherlands Drawing by Philippus van Gulpen Timmers ed In het voetspoor van Ph van Gulpen DSM Calendar Heerlen Philippus van Gulpen Custom marker PDold Drawings of castles in Limburg by Philippus van Gulpen