The Hanoverian Succession refers to the transition of the British throne to the House of Hanover following the death of Queen Anne in 1714. This change was significant because it established a Protestant line of succession, ensuring that the monarchy remained aligned with the Church of England. The first Hanoverian king was George I, who was a distant relative of Anne. The succession was influenced by the Act of Settlement 1701, which aimed to prevent Catholic heirs from ascending the throne. This act solidified the political power of the Hanoverian dynasty, leading to a series of Hanoverian monarchs, including George II and George III, who ruled over Britain and its expanding empire.