Nigel Lawson was Margaret Thatcher’s “unassailable” chancellor of the Exchequer for six years, until he resigned after a long-running and bitter storm over her reliance on monetarist guru Sir Alan Walters as her economic adviser.
The bombshell resignation in October 1989 marked the early stages of a succession of bleak and calamitous events which were to lead to Mrs Thatcher’s own downfall 13 months later.
