Conservative leader David Cameron is to deliver the sixth annual Hugo Young memorial lecture next week.
Organised by the Scott Trust, owner of the Guardian and the Observer newspapers, the lecture will take place next Tuesday.
The lecture is given in honour of Young, a former Guardian senior political commentator and chairman of the Scott Trust, who died in September 2003 aged 64.
Previous speakers include Gordon Brown, Lord Mandelson and Jose Manuel Barroso.
Hugo Young started his career as a journalist on the Yorkshire Post before moving to London and the Sunday Times in 1965. He worked there as chief leader writer, political editor and joint deputy editor before joining the Guardian where he wrote columns until shortly before his death.
Young was also the author of a number of books of which the best known are his political biography of Margaret Thatcher, One of Us, first published in 1989, and This Blessed Plot: Britain and Europe from Churchill to Blair, published in 1998.
He was chairman of the Scott Trust from 1989 to 2003.