EntityQ5603788· pop 6· linked from 27 articlesGreencastleSign in to savecastle in County Down, United KingdomConnectionsNorthern IrelandEntitygeographic coordinate systemEntityInternational Standard Book NumberEntityBelfastEntitycastleEntityNewryEntityCounty DownEntityLisburnEntityBangorEntityDownpatrickEntityNewtownardsEntityMourne MountainsEntityStrangford LoughEntityHolywoodEntityBanbridgeEntityNewcastleEntityWarrenpointEntityComberEntityCarlingford LoughEntityDundonaldEntityCategoriesCastles in County DownNorthern Ireland Environment Agency propertiesRuined castles in Northern IrelandTownlands of County Down