 There has been a castle on the site since the early 14th century, when the Sinclair family, Earls of Caithness and Barons of Roslin, fortified the site, although the present ruins are of slightly later date.Following destruction during the War of the Rough Wooing of 1544, the castle was rebuilt.This structure, built into the cliffs of Roslin Glen, has remained at least partially habitable ever since.