The Clan Maclean
Sir Lachlan died in 1650 and the Chiefdom passed to his son Sir Hector Maclean.
These are straight out of the bag, with no headswaps. A lowland officer has joined their ranks.
Tenuous Clan Maclean trivia: Alistair MacLean, author of the Guns of Navarone, served on the appropriately named HMS Royalist during WWII.