Sir Francis Drake, Vice Admiral (1540 – 27 January 1596) was an English sea captain, privateer, navigator, slaver, and politician of the Elizabethan era. Elizabeth I of England awarded Drake a knighthood in 1581. He was second-in-command of the English fleet against the Spanish Armada in 1588. He also carried out the second circumnavigation of the world, from 1577 to 1580. He died of dysentery in January 1596 after unsuccessfully attacking San Juan, Puerto Rico.