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Map of Ghent in by Covens and Mortier published . en Map of Ghent in by Covens and Mortier published vintagemaps html Covens and Mortier copypaste from source Cartograph Covens and Mortier Title Plan de la ville et citadelle de Gand qui fut assige par les HautsAlliz le dcembre l'on ouvrit la tranche au trois attaques le