Vane, whose ‘bulky form, finely-cut features, and commanding presence were quite in harmony with the physique and facial outlines of his noble ancestors’, was the youngest son of William Harry Vane, who had been MP for Totnes, 1788-90, and Winchelsea, 1790-92, before succeeding as third earl of Darlington.
At the 1841 general election Vane offered as a Liberal for Durham South. The campaign was a bitter one, and his canvassing skills were privately lambasted by his political opponents, but backed by his father’s considerable influence, he was easily returned.
At the 1847 general election Vane was in the delicate position of being the Liberal nominee of a Conservative patron, following the succession of his eldest brother Henry to the dukedom in 1842.
Re-elected without a contest in 1852, Vane stated that while he was not ‘any warm partisan’ of British involvement with the Crimean war, he would ‘give his most cordial support to the Government in its prosecution’, 11 Apr. 1854. He voted against Disraeli’s critical motion on the war, 25 May 1855, but believing that ‘the present war was one fruitful of danger and calamity to the country’, he advocated making peace with Russia at ‘the first available opportunity’, 5 June 1855. He remained loyal though to Palmerston’s newly-formed ministry, but attended less frequently, and he opposed Roebuck’s censure of the cabinet, 19 July 1855.
At the 1857 general election Vane’s prospects for re-election were complicated by the emergence of a second Liberal candidate, but the family ties prevailed, and he was returned in second place.
At the 1859 general election, following his brother’s decision to instruct the family’s tenants to plump for the Conservative candidate, Vane retired after eighteen years as MP for Durham South without giving a public explanation.
In September 1864, following the deaths in quick succession of his elder brothers Henry and William, Vane succeeded to the Lords as fourth duke of Cleveland. According to Disraeli, he made ‘a very good duke; tall and dignified, but very natural’.
