On coming of age Herbert, ‘a commoner of a great estate’,
During the election campaign of 1740-1 Herbert, at Walpole’s request, tried to gain control of Bishop’s Castle in Shropshire, but was unsuccessful.
As the late Marquis of Powis by giving me his estate, has done so much for a Protestant family, I should be very sorry to find that his Majesty with the interposition of my friends, should not be prevailed upon to honour me with his approbation of it by granting me his titles. ...
P.S. - Let me add further that my disappointment in the point above mentioned, would make a very unfavourable impression upon the minds of those in the country that are the friends of the Government and are my friends; and have expressed very greatly their joy and satisfaction with my good fortune; to which they hope for the addition of the title.
Namier, Structure, 279, 298.
Created Earl of Powis, he continued to lead the Shropshire Whigs till the next reign.
He died 11 Sept. 1772.
