He is chief of Clan Ramsay and Deputy Captain General of the King's Body Guard for Scotland.

His mother was a sister of Sir David Stirling, founder of the Special Air Service, and therefore (a descendant of Charles II).

In 1968, Dalhousie, then styled Lord Ramsay, trained at the Mons Officer Cadet School and was commissioned as a second lieutenant into the Coldstream Guards.

[5][6] Dalhousie was appointed Lord Steward of Household on 22 July 2009 on the retirement of the 5th Duke of Abercorn.

[11] They have three children:[11] In 2019, he listed Brechin Castle, the family seat in Angus, for sale through Savills.