Tilquhillie Castle is a castle near Banchory in Aberdeenshire, Scotland. A Category A listed building, the castle formally formed part of the lands of Arbroath Abbey.[1] Historic Environment Scotland's listed-building report from 1972 described the castle thus:The castle was subsequently restored with modern amenities.The novelist and travel writer Norman Douglas spent part of his childhood in Tilquhillie, the home of his paternal ancestors.