Viscount Palmerston was a title in the Peerage of Ireland. The title is derived from Palmerstown in Ireland, which was also known as Palmerston. The name is the origin of several place names in Australia, Canada, New Zealand, and other former British possessions.. It was created on 12 March 1723 for Henry Temple, who subsequently represented East Grinstead, Bossiney and Weobley in the British House of Commons. He was made Baron Temple, of Mount Temple in the County of Sligo, at the same time, also in the Peerage of Ireland. He was succeeded by his grandson, the 2nd Viscount,[1] who represented seven constituencies in the House of Commons and served as a Lord of the Admiralty and Lord of the Treasury. On his death the titles passed to his son, the 3rd Viscount, who became a distinguished politician and served three times as Foreign Secretary and twice as Prime Minister of the United Kingdom. At his death in 1865 the 3rd Viscount was granted a state funeral, the fourth non-royal to be given this honour. Lord Palmerston was childless and the barony and viscountcy became extinct on his death.
The third Viscount Palmerston married the Honourable Emily Lamb, sister of Prime Minister Lord Melbourne and widow of Peter Clavering-Cowper, 5th Earl Cowper. Emily's second son from her first marriage, the Honourable William Cowper, inherited parts of his stepfather's estates, including Broadlands near Romsey in Hampshire, and assumed the additional surname of Temple. In 1880 he was raised to the peerage as Baron Mount Temple, a revival of the junior title held by the Viscounts Palmerston. He was childless and the peerage became extinct on his death in 1888. However, it was revived once again in 1932 in favour of his great-nephew, Wilfrid Ashley. He had no sons however and the title became extinct again upon his death in 1938. His daughter, the Honourable Edwina, wife of Lord Louis Mountbatten, inherited Broadlands.
Henry John Temple 1784–1865 3rd Viscount Palmerston and Baron Temple
Richard Temple-Nugent-Brydges-Chandos-Grenville 1776–1839 1st Duke of Buckingham and Chandos, Marquess of Chandos, and Earl Temple of Stowe, 2nd Marquess of Buckingham, 3rd Earl Nugent, 4th Earl Temple, 5th Viscount Cobham and Baron Cobham
Quarterly 1st & 4th Or an eagle displayed Sable (Leofric, Saxon Earl of Mercia), 2nd & 3rd Argent two bars Sable each charged with three martlets Or (Temple).
Supporters
Dexter a lion reguardant poean sinister a horse reguardant Argent mane tail and hoofs Or.