Tour Scotland video of Cortachy Castle in Angus. This Scottish castle has been the home of the Ogilvy family and the seat of the Earls of Airlie ever since the time the family moved here in 1639 when the Airlie Castle was burned down. The first castle on this site was built in1330 by the Stewart Earls of Strathearn. In 1473, King James III granted the lands to Sir Walter Ogilvy who probably began the current structure. The castle and its surrounding estate were bought by Lord Ogilvy from a kinsman in 1625 and his son, the first Earl of Airlie moved there from Airlie Castle. Since then Cortachy has been the home of the Ogilvies. The clan tartan is a blue and green check with an over-check of red. The earliest structures of the castle, the south wing, date from the 16th century. Three original round towers, one with a rectangular watch-room at the top, corbelled-out on a W-shaped support can be seen today.