Menzies Campbell, former Liberal Democrat leader and 'polymath', dies at 84

Menzies Campbell, the former Liberal Democrat leader who was an MP for nearly three decades, has died aged 84, prompting tributes from across the political spectrum to his decency and sense of principle.

- Peter Walker

Lord Campbell, usually known as Ming, died in London after a period of respite care, his grandson Gregor Grant-Suttie said in a statement. He had spent some of his final days watching last weekend's Lib Dem conference, the family said.

Before becoming a politician, Campbell was called to the Scottish bar and became an advocate. As a young man he had been an elite sprinter, competing for Great Britain in the 1964 Olympics and holding the UK record for the 100m.

Campbell, the MP for North East Fife for nearly 28 years, lasted just 19 months as party leader, taking the role in 2006 after Charles Kennedy stepped down suddenly, saying he was being treated for alcoholism.

Campbell had a sometimes difficult period as leader and there was speculation about a challenge when it appeared that Gordon Brown was about to call an election in 2007.

The election did not happen, but Campbell resigned, saying: "Questions about leadership are getting in the way of further progress by the party."