[3] Sanquhar Castle was built by Lord Crichton in the 13th century in the south west Scotland in the area of Dumfries and Galloway.
William, was the fifth earl of Dumfries, in 1721 he was commissioned in his uncle's 'Earl of Stair's regiment', and the 6th dragoons, he would continue to fight in the army until 1747.
The subsequent 2nd, 3rd and 4th Marquess of Bute/7th, 8th and 9th Earls of Dumfries became involved in the coal mining industry in south Wales creating 2 gothic revival residences, Cardiff Castle and Castell Coch.
The 10th Earl of Dumfries became involved with birds working as an ornithologist; he purchased the islands of St Kilda, leaving it to the National Trust for Scotland in 1956.
[8] The eleventh Earl of Dumfries became a scholar being having graduated from Trinity College, Cambridge, also becoming a fellow at the University of Edinburgh.
[9] A patron of the arts he held successive positions for decades, such as trustees and chairman on councils and boards in the United kingdom.
Dumfries House had been a family home from 1760 to 1993, when the last full-time occupant Lady Eileen, Dowager Marchioness of Bute, passed away.