In 1587 he explored from North Carolina to present-day Florida, naming the region Virginia in honor of Elizabeth, the “Virgin Queen.” In 1587 Raleigh sent an ill-fated second expedition of colonists to Roanoke. In 1588 he took part in the victory over the Spanish Armada. He led other raids against Spanish possessions and returned with much booty. Raleigh forfeited Elizabeth’s favor by his courtship of and subsequent marriage to one of her maids-of-honor, Bessy Throckmorton, and he was committed to the Tower (1592). Hoping, on his release, to recover his position, he led an abortive expedition to Guiana to search for El Dorado, a legendary land of gold. Instead, he helped to introduce the potato plant and tobacco use in England and Ireland.
Elizabeth’s successor, James I, distrusted and feared Raleigh, charged him with treason and condemned him to death, but commuted the sentence to imprisonment in the Tower (1603). There Raleigh lived with his wife and servants, and wrote his History of the World (1614). He was released in 1616 to search for gold in South America. Against the king’s undertaking to the Spanish, he invaded and pillaged Spanish territory, was forced to return to England without booty, and was arrested on the orders of the king. His original death sentence for treason was invoked, and he was executed at Westminster. A gifted poet, writer, and scholar, many of his poems and writings were destroyed. A pioneer of the Italian sonnet-form in English, he was a patron of the arts, notably of Edmund Spenser in his composition of The Faerie Queene (1589–96).
Biography courtesy of BIO.com