Dunnottar is best known as the place where the Honours of Scotland, the Scottish crown jewels, were hidden from Oliver Cromwell's invading army in the 17th century. The property of the Keiths from the 14th century, and the seat of the Earl Marischal. Dunnottar declined after the last Earl forfeited his titles by taking part in the Jacobite rebellion of 1715. Long before these events, Dunnottar was the site of a battle in 900 where King Donald II of Scotland was killed by the invading Vikings. The castle was restored in the 20th century and is now open to the public.