Sophia of Hanover in the context of "The Hague"

The House of Wittelsbach (German: Haus Wittelsbach) is a former Bavarian dynasty, with branches that have ruled over territories including the Electorate of Bavaria, the Electoral Palatinate, the Electorate of Cologne, Holland, Zeeland, Sweden (with Swedish-ruled Finland), Denmark, Norway, Hungary, Bohemia, and Greece. Their ancestral lands of Bavaria and the Palatinate were prince-electorates, and the family had three of its members elected emperors and kings of the Holy Roman Empire. They ruled over the Kingdom of Bavaria which was created in 1805 and continued to exist until 1918.

The House of Windsor, the reigning royal house of the British monarchy, are descendants of Sophia of Hanover (1630–1714), a Wittelsbach Princess of the Palatinate by birth and Electress of Hanover by marriage, who had inherited the succession rights of the House of Stuart and passed them on to the House of Hanover.

The Act of Settlement (12 & 13 Will. 3. c. 2) is an act of the Parliament of England that settled the succession to the English and Irish crowns to only Protestants, which passed in 1701. More specifically, anyone who became a Roman Catholic, or who married one, became disqualified to inherit the throne. This deposed the remaining descendants of Charles I, other than his Protestant granddaughter Anne, as the next Protestant in line to the throne was Sophia of Hanover. Born into the House of Wittelsbach, she was a granddaughter of James VI and I from his most junior surviving line, with the crowns descending only to her non-Catholic heirs. Sophia died less than two months before Queen Anne, and Sophia's son succeeded to the throne as King George I, starting the Hanoverian dynasty in Great Britain and Ireland.

The Act of Supremacy 1558 (1 Eliz. 1. c. 1) had confirmed the independence of the Church of England from Roman Catholicism under the English monarch. One of the principal factors which contributed to the Glorious Revolution was the perceived assaults made on the Church of England by King James II, a Roman Catholic, who was deposed in favour of his Protestant daughter Mary II and her husband William III. The need for this Act of Settlement was prompted by the inability of William and Mary, as well as of Mary's Protestant sister (the future Queen Anne), to produce any surviving children, and by the perceived threat posed by the pretensions to the throne by remaining Roman Catholic members of the House of Stuart.

George I (George Louis; German: Georg Ludwig; 28 May 1660 – 11 June 1727) was King of Great Britain and Ireland from 1 August 1714 and ruler of the Electorate of Hanover within the Holy Roman Empire from 23 January 1698 until his death in 1727. He was the first British monarch of the House of Hanover.

Born in Hanover to Ernest Augustus and Sophia of Hanover, George inherited the titles and lands of the Duchy of Brunswick-Lüneburg from his father and uncles. In 1682, he married his cousin Sophia Dorothea of Celle, with whom he had two children; he also had three daughters with his mistress Melusine von der Schulenburg. George and Sophia Dorothea divorced in 1694. A succession of European wars expanded George's German domains during his lifetime; he was ratified as prince-elector of Hanover in 1708.

The Electorate of Hanover (German: Kurfürstentum Hannover or simply Kurhannover) was an electorate of the Holy Roman Empire located in northwestern Germany that arose from the Principality of Calenberg. Although formally known as the Electorate of Brunswick-Lüneburg (German: Kurfürstentum Braunschweig-Lüneburg), it made Hanover its capital city. For most of its existence, the electorate was ruled in personal union with Great Britain and Ireland following the Hanoverian Succession.

The Duchy of Brunswick-Lüneburg had been split in 1269 between different branches of the House of Welf. The Principality of Calenberg, ruled by a cadet branch of the family, emerged as the largest and most powerful of the Brunswick-Lüneburg states. In 1692, the Holy Roman Emperor elevated the Prince of Calenberg to the College of Electors, creating the new Electorate of Brunswick-Lüneburg. The fortunes of the electorate were tied to those of Great Britain by the Act of Settlement 1701 and Act of Union 1707, which settled the succession to the British throne on Queen Anne's nearest Protestant relative, the Electress Sophia of Hanover, and her descendants.

Succession to the British throne is determined by descent, sex, legitimacy, and religion. Under common law, the Crown is inherited by a sovereign's children or by a childless sovereign's nearest collateral line. The Bill of Rights 1689 and the Act of Settlement 1701 restrict succession to the throne to the legitimate Protestant descendants of Sophia of Hanover who are in "communion with the Church of England". Spouses of Catholics were disqualified from 1689 until the law was amended in 2015. Protestant descendants of those excluded for being Roman Catholics are eligible.

King Charles III has been the sovereign since 2022, and his heir apparent is his elder son, William, Prince of Wales. William's three children are next, in order of birth: Prince George, Princess Charlotte, and Prince Louis. Fifth in line is Prince Harry, Duke of Sussex, the younger son of the King; sixth is Harry's elder child, Prince Archie. Under the Perth Agreement, which came into effect in 2015, only the first six in line of succession require the sovereign's consent before they marry; without such consent, they and their children would be disqualified from succession.

George II (George Augustus; German: Georg August; 30 October / 9 November 1683 – 25 October 1760) was King of Great Britain and Ireland, Duke of Brunswick-Lüneburg (Hanover) and a prince-elector of the Holy Roman Empire from 11 June 1727 (O.S.) until his death in 1760.

Born and brought up in northern Germany, George is the most recent British monarch born outside Great Britain. The Act of Settlement 1701 and the Acts of Union 1707 positioned his grandmother Sophia of Hanover and her Protestant descendants to inherit the British throne. George married Princess Caroline of Ansbach, with whom he had eight children. After the deaths of George's grandmother and Anne, Queen of Great Britain, George's father, the Elector of Hanover, ascended the British throne as George I in 1714. In the first years of his father's reign as king, Prince George was associated with opposition politicians until they rejoined the governing party.