[1] Berkeley's father, Reginald, was Liberal Member of Parliament (MP) for Nottingham Central from 1922 to 1924 and a noted playwright.
On the socially liberal wing of his party, Berkeley was a member of the Howard League for Penal Reform and from 1965 the honorary Treasurer.
In this capacity he employed Jeffrey Archer, who was establishing a reputation for raising large amounts of money for charities, to organise the UNA's flag day collection.
Despite barely increasing the previous year's total, Archer was promoted to organise a dinner at 10 Downing Street, which raised more than £200,000.
He then spent time apparently working as a roving ambassador of the now defunct Republic of Transkei, a bantustan, until he was abducted one night in February 1979 while dining at the Umtata Holiday Inn, and assaulted on the side of a road, put into the boot of a car, and dumped over the border at Kei Bridge.