King of Great Britain from 1714 to 1727, and first of the Hanoverian line; son of Ernest Augustus, Elector of Hanover, and of Sophia, granddaughter of James I. of England; born in Hanover; in 1682 he married his cousin, the Princess Sophia Dorothea of Zell, and in 1698 became Elector of Hanover; he co-operated actively with Marlborough in opposing the schemes of Louis XIV., and commanded the Imperial forces; in accordance with the Act of Settlement, he succeeded to the English throne on the death of Queen Anne; his ignorance of English prevented him taking part in Cabinet councils, a circumstance which had important results in the growth of constitutional government, and the management of public affairs during his reign devolved chiefly upon Sir Robert Walpole; the abortive Jacobite rising of 1715, the South Sea Bubble (1720), and the institution of Septennial Parliaments (1716), are among the main events of his reign; in 1694 he divorced his wife on account of an amour with Count Konigsmark, and kept her imprisoned abroad till her death in 1724, while he himself during these years lived in open profligacy with his mistresses (1660-1727).