James Radclyffe was the scion of a wealthy Catholic family in Northumberland which had received the earldom of Derwentwater in 1687 and which distinguished itself by its Jacobite opposition to the Revolution settlement. He and his brother, Francis, were sent to the Jacobite court at St Germain in 1702 at the request of the widowed Mary of Modena, in order to be companions for James Francis Edward Stuart, the ‘Old Pretender’. Derwentwater, as he had become upon the death of his father in 1705, was captured during the abortive Jacobite descent on England in 1708. He was released because of his young age and was given licence to return to England in late 1709.
As a result of his conviction Derwentwater’s estate, estimated to be worth £6,372 p.a., was put in the hands of the commissioners for forfeited estates and the peerage was forfeited. Later in 1716 the family sued, successfully arguing that as the lands had been entailed they legally belonged to his six-year-old son, John Radclyffe, who continued to style himself the 4th earl of Derwentwater. After John’s death, unmarried and underage, in 1731, Parliament passed a series of acts to ensure the crown’s control of these lucrative estates, now estimated to be worth £9,000 p.a. These statutes also prevented the reversion of the Derwentwater estates to the 3rd earl’s younger brother, Charles Radclyffe. Radclyffe, who styled himself 5th earl of Derwentwater, had also been condemned for his part in the 1715 rising but had escaped before his own execution. An act of 1732 voided the conveyances the 3rd earl had arranged to entail his estate and further prohibited foreign-born issue of convicted traitors, such as Charles Radclyffe’s own sons, from inheriting English titles and land.
