The House of Windsor is the reigning royal house of the United Kingdom and the other Commonwealth realms. The dynasty is originally of German paternal descent and was a branch of the House of Saxe-Coburg and Gotha, itself derived from the House of Wettin, which succeeded the House of Hanover to the British monarchy following the accession of King Edward VII, son of Queen Victoria and Prince Albert of Saxe-Coburg and Gotha.
The name was changed from Saxe-Coburg and Gotha to the English Windsor (from Windsor Castle) in 1917 because of anti-German sentiment in the United Kingdom during World War I There have been four British monarchs of the house of Windsor since then: George V, Edward VIII, George VI, and Elizabeth II.
The current head of the house is monarch of sixteen sovereign states. These are the United Kingdom (where they are based), Canada, Australia, New Zealand, Jamaica, Barbados, the Bahamas, Grenada, Papua New Guinea, Solomon Islands, Tuvalu, Saint Lucia, Saint Vincent and the Grenadines, Belize, Antigua and Barbuda, and Saint Kitts and Nevis. As well as these separate monarchies, there are also three Crown dependencies, fourteen British Overseas Territories and two associated states of New Zealand.