Laurence Oliphant of Gask, descended from William Oliphant of Newton, now thought to be fourth son of Colin, Master of Oliphant himself son of the second Lord Oliphant was acknowledged, albeit incorrectly, by William, 11th Lord Oliphant as his rightful successor but Gask, having taken the part of Prince Charles Edward in the insurrection of 1745 was debarred by attainder from assuming the title although he never tried to do so even after his attainder was lifted. In fact since the Act of Union in 1707 it was no longer the right of a peer to nominate his successor in the manner thereto. On 14 July 1760 Laurence was created Lord Oliphant in the Jacobite peerage. The heir of George, second son of Colin, Master of Oliphant was the next heir to the Oliphant Peerage.