The Earl bears the subsidiary titles of Viscount Crowhurst (1850) and Baron Cottenham (1836), both in the Peerage of the UK, and holds two baronetcies, one in the baronetage of Great Britain (1784) and one in that of the UK (1801).
John Russell, 1st Earl Russell (August 18, 1792 - May 28, 1878), known as Lord John Russell before 1861, was a Whig politician who served twice as Prime Minister of the United Kingdom in the mid-nineteenth century.
In 1834, when the leader of the Commons, Lord Althorp, succeeded to the peerage as Earl Spencer, Russell became the leader of the Whigs in the Commons, a position he maintained for the rest of the decade, until the Whigs fell from power in 1841.
Russell was elevated to the peerage as Viscount Amberley of Amberley and of Ardsalla and Earl Russell in 1861.