Chetwynde Castle was a large baronial mansion, belonging to the Plantagenet period, and situated in Monmouthshire. It was a grand old place, with dark towers, and turrets, and gloomy walls surmounted with battlements, half of which had long since tumbled down, while the other half seemed tottering to ruin. That menacing ruin was on one side of the structure concealed beneath a growth of ivy, which contrasted the dark green of its leaves with the sombre hue of the ancient stones. Time with its defacing fingers had only lent additional grandeur to this venerable pile. As it rose there --"standing with half its battlements alone, and with five hundred years of ivy grown"--its picturesque magnificence and its air of hoar antiquity made it one of the noblest monuments of the past which England could show.