and Canning resigned. Diplomatic career, 1831–1841 Following his return, Canning attempted to enter British politics, entering the House of Commons in 1831, but was not a particularly notable figure in the Commons. When the Whigs entered office and the Canningite Lord Palmerston became British foreign secretary, Canning returned again to Constantinople in 1831, but returned in 1832, disapproving of Palmerston's lack of consultation with him and the choice of Prince Otto of Bavaria as King of Greece. That year, he was appointed Ambassador to Russia, but never took the office, as Tsar Nicholas I refused to receive him. Canning was, however, sent on a new diplomatic mission, to Madrid, where he was to deal with the rival claimants to the Portuguese throne, but was largely unsuccessful. He turned again, attempting again to pursue a course in domestic politics, associating himself with Lord Stanley's band of renegade Whigs, but when Stanley's followers entered government with Sir Robert Peel in 1841, Canning again was not offered a post. Going to Lord Aberdeen, the new Foreign Secretary, with whom his relations remained ambiguous, Canning was this time offered the Constantinople embassy. Ambassador to Constantinople, 1842–1858 Canning's term in Constantinople lasted from 1842 to 1852. When Canning's old ally Stanley, now Earl of Derby, formed a government in 1852, Canning hoped to receive the foreign office, or at least the Paris embassy. Instead, he was raised to the peerage as Viscount Stratford de Redcliffe, in the County of Somerset. He returned home in 1852, but when Aberdeen's coalition government was formed, Stratford de Redcliffe was returned to Constantinople. In Constantinople for the last time, Stratford came in the midst of a crisis caused by the dispute between Napoleon III and Nicholas I over the protection of the holy places. This crisis ultimately led to the Crimean War. Stratford is accused of encouraging the Turks to reject the compromise agreement during the Menshikov mission. It appears that he was consistently urging the Turks to reject compromises arguing that any Russian treaty, or facsimile thereof, would be to subject the Ottoman Empire to protectorate status under Tsar Nicholas I. He left Constantinople for the last time in 1857, and resigned early the next year. Retirement For the next twenty-two years Lord Stratford de Redcliffe lived in retirement, pursuing scholarly activities and deeply bored by his absence from public life. He attended the House of Lords regularly