Derby, however, was always royalist in sympathy, and did not finally surrender till 1646; in 1659 it rebelled against Richard Cromwell, and in 1745 entertained the young Pretender.
To this type of glass belong many of the Jacobite glasses which commemorate the old or the young Pretender.
He gave new information about the continental career of the Young Pretender in Pickle the Spy (1897), an account of Alastair Ruadh Macdonell, whom he identified with Pickle, a notorious Hanoverian spy.
In 1715 the Earl Marischal proclaimed the Old Pretender at Aberdeen, and in 1745 the duke of Cumberland resided for a short time in the city before attacking the Young Pretender.
He showed his spirit as a boy by riding across from Wentworth to Carlisle in 1746 to join the duke of Cumberland in his pursuit of the Young Pretender.