Arms of Jemima Yorke, suo jure 2nd Marchioness Grey and Countess of Hardwicke (1723-1797). She was the daughter and heiress of John Campbell, 3rd Earl of Breadalbane and Holland by his first wife Lady Amabel Grey (d.1726/7)[1], a daughter of Henry Grey, 1st Duke of Kent, 1st Marquess of Kent, 12th Earl of Kent, 2nd Baron Lucas of Crudwell, KG, by his first wife Jemima Crewe (d.1728), 1st dau. and cohrss. of Thomas Crewe, 2nd Baron Crewe. Quarterly of 4:

• 1: Grand-quarterly of 4:
  • 1&4: Gyronny of eight or and sable (Campbell)
  • 2: Argent, a lymphad sails furled flags and pennants flying gules and oars in action sable (Lordship of Lorne)
  • 3: Or, a fess chequy argent and azure (Stewart, Hereditary High Steward of Scotland)
• 2: Grey (Earl of Kent) arms
• 3: Lucas
• 4: Azure a lion rampant argent (Crewe) (Henry Grey, 12th Earl of Kent and 2nd Baron Lucas of Crudwell later 1st Marquess of Kent later 1st Duke of Kent, married Jemima Crewe, 1st dau. and cohrss. of Thomas Crewe, 2nd Baron Crewe.