Educated at Eton and Merton College, Oxford, Conrad Russell was one of the world's leading authorities on 17th century British history, having extensively written and lectured on parliamentary struggles of the period. Russell was also a passionate advocate of liberalism, from a long family line of distinguished liberals.
After his death from complications of emphysema, Russell was succeeded as Earl by his son, Nicholas. Another son, John Russell is also a politician.
He was Lecturer (and later Reader) in History at Bedford College, University of London (now part of Royal Holloway), 1960-1979; Professor of History at Yale University, USA, 1979-1984; Astor Professor of British History at University College London, 1984-1990; and Professor of British History at King's College London from 1990 to his retirement in 2003.
He succeeded to the title of the 5th Earl Russell on the death of his half brother, John Conrad Russell, in 1987. He was the first parliamentarian to take his seat as a Liberal Democrat, shortly after the party was formed in 1988 from a merger of the Liberal Party and the Social Democratic Party.
Russell was at various times his party's spokesman on home affairs, youth affairs, and work and pensions.
In 1999, all but 92 hereditary peers were removed from the House of Lords. Lord Russell was elected at the top of his party's list of hereditary peers to retain their seats, though he had consistently argued in favour of abolishing the Lords completely, and replacing it with an elected senate.
He was a frequent contributor to debates, much respected on all sides of the house, and well known for sprinkling his speeches with historical analogies. In 1996, he was awarded the Highland Park/Spectator Peer of the Year award.
He was vice-president of the Liberal Democrat Youth and Students 1993-1994 and honorary president of the Liberal Democrat History Group 1998-2004.