Palmerston,
3d Viscount (Henry John Temple) 1784-1865; Brit. statesman: prime minister (1855-58; 1859-65)
See Palmerston in American Heritage Dictionary 4
British politician remembered for his efforts to maintain the balance of power in Europe. He served as foreign secretary (1830-1834, 1835-1841, and 1846-1851) and prime minister (1855-1858 and 1859-1865).