The Great Raid proved to be the last raid. In 1527, the historian Hector Boece wrote of the "rewinous wallis" of Urquhart, but by the close of the 16th century Urquhart had been rebuilt by the Grants, now a powerful force in the Highlands. Repairs and remodelling continued as late as 1623, although the castle was no longer a favoured residence. In 1644 a mob of Covenanters (Presbyterian agitators) broke into the castle when Lady Mary Grant was staying, robbing her and turning her out for her adherence to Episcopalianism. An inventory taken in 1647 shows the castle virtually empty. When Oliver Cromwell invaded Scotland in 1650, he disregarded Urquhart in favour of building forts at either end of the Great Glen.