... is situated in the stewartry of Kirkcudbright, upon an island about two acres in extent, formed by the river Dee. The walls are very thick and strong, and bear the marks of great antiquity. It was a royal castle; but the keeping of it, agreeable to the feudal practice, was granted by charter, ... — Minstrelsy of the Scottish border (3rd ed) (1 of 3) • Walter Scott