 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.