The third son of Isaac Morier, consul-general to the Turkey Company at Constantinople, he was born in Smyrna on 8 January 1784, was educated at Harrow School, and entered the diplomatic service. In January 1804, at age 20, he was appointed secretary to the political mission sent by the British government to Ali Pasha and the Turkish governors of the Morea and other provinces, with a view to counteracting the influence of France in south-east Europe. In May 1807 he was ordered to take entire charge of the mission, but the continuing rupture of diplomatic relations between England and the Ottoman Empire defeated his negotiations. Morier was shortly transferred to Sir Arthur Paget's mission, at the Dardanelles. He was despatched on special service to Egypt, where he was instructed to negotiate for the release of the British prisoners captured by Muhammad Ali during the Alexandria expedition of 1807. In the summer of 1808 he was attached to Robert Adair's embassy, and with Stratford Canning, assisted in negotiations which resulted in the Treaty of the Dardanelles of 5 January 1809. Back in Constantinople, with the exception of a mission to Tabriz from October 1809 to the following summer, he remained at the embassy, first under Adair, and then as secretary of legation under his successor, Stratford Canning. At the end of Canning's appointment, Morier accompanied him on his return to England. In 1813 he was attached to Lord Aberdeen's mission to Vienna, and during the years 1813-1815 was employed in the negotiations around the fall of Napoleon. He was with Lord Castlereagh at the conferences at Chatillon-sur-Seine, and assisted in the preparation of the Treaty of Paris. In the same year he attended the foreign minister at the Congress of Vienna, and, when the Duke of Wellington succeeded Castlereagh, Morier remained as one of the secretaries. In July 1815, after the final overthrow of Napoleon, Morier accompanied Castlereagh to Paris, and was occupied till September in drafting the Treaty of Paris. Appointed consul-general for France in November 1814, Morier did not take up the post until September 1815, when his work on the treaties was completed. At the same time he was named a commissioner for the settlement of the claims of British subjects on the French government. The consul-generalship was abolished, and Morier retired on a pension 5 April 1832, but was almost immediately appointed minister plenipotentiary to the Swiss Confederated States. He then resided in Bern for 15 years. On 19 June 1847, at the age of 63, Morier retired from the diplomatic service. He died in London 13 July 1877 at the age of 93.
Works
Morier published two pamphlets, What has Religion to do with Politics?, and The Basis of Morality. At the age of 73 he published a novel, Photo, the Suliote, a Tale of Modern Greece, London, 1857. Material for the story came from a Greek physician with whom Morier was spent a period of quarantine at Corfu. Some letters written by Morier at Tabriz were published in Stanley Lane-Poole's Life of Stratford Canning.
