Sir William Shelton dies after long and challenging career

Sir William Shelton, one of the last agency bosses to combine careers in advertising and politics, has died, aged 73.

As well as spending more than three decades in the industry, he also served as a Conservative MP for 22 years and was a key figure behind Margaret Thatcher's challenge for the party's leadership in 1975.

An Oxford graduate and economics lecturer, Shelton began his advertising career in 1952 with Colman Prentice & Varley, the agency that ran the Tories' 1959 election campaign.

After running CPV's overseas operations, he was appointed as the managing director of Grosvenor Advertising in 1969.

In 1974, he began a seven-year spell as the chairman of the newly formed Fletcher Shelton Delaney, which later became Delaney Lund Knox Warren & Partners.

Winston Fletcher, who was Fletcher Shelton's managing director, said: "Bill was very charming, a good strategic thinker and very sharp. His problem was that he wanted to do too many things at once and his real love was politics rather than advertising."