Note: He was a Representative Peer for Scotland. Scottish peers did not then have an automatic right to sit in the House of Lords, but had to be elected by their fellow peers to do so. He married a great Durham heiress, Miss Mary Eleanor Bowes. He added new kitchens and the Billiard Room in 1773 and new service courts beyond the east wing. He began remodelling the policies, pulling down the garden walls in front of the Castle and moving, in 1775, the gates to the periphery of the Estate.
