The gentleman born circa 1280 at the castle located 1km east of the village of Closeburn and 2km south-east of Thronhill was 1st cousin of what famous Scotsman?
Roger de Kirkpatrick: Sir Roger de Kirkpatrick of Closeburn (fl. Roger de Kirkpatrick:  14th century) was a Scottish gentleman, a 3rd cousin and associate of Robert the Bruce, and a 1st cousin of Sir William Wallace. Roger de Kirkpatrick:  He was born circa 1280 at the Kirkpatrick stronghold of Closeburn Castle.
i don't know