| 1. | Rognvald represented the pro-Norwegian faction in the Earldom. Rognvald représente la faction pro-norvégienne du comté. |
| 2. | On his death his Irish earldom became extinct. À sa mort, son comté irlandais s'est éteint. |
| 3. | He was succeeded in the earldom by Niall. Il a seulement épargné Niall. |
| 4. | Noel inherited the earldom from his cousin in 1690. Noel a hérité du comté de son cousin, en 1690. |
| 5. | He died unmarried and without children when the earldom became extinct. Il mourut sans enfants et Villers fut vendu. |
| 6. | A year later Henry was granted the earldom of Northumberland. Un an plus tard, Henry obtint le comté de Northumberland. |
| 7. | His successor in the earldom was his son, Henry. Son successeur dans le titre de comte sera son fils, Henry. |
| 8. | Lord Mount Stuart succeeded his father in the earldom in 1792. Lord Mount Stuart succéda à son père comme comte en 1792. |
| 9. | The Earldom of Marley is located along the northeastern extent of Gwynedd. Le comté de Marley est situé au nord-est de Gwynedd. |
| 10. | An earldom was offered in 1809 but declined. Un titre de comte lui est offert en 1809, mais il décline l'offre. |