BBC: George I (1660 - 1727): Biography for the Elector of Hanover and the first Hanoverian king of Great Britain as a result of the Act of Settlement of 1701.George I: Biography for the king of Great Britain and Ireland (1714–27); son of Sophia, electress of Hanover, and great-grandson of James I.George I of Great Britain - Wikipedia: Article covers early life, reign and later years.