Bloodlines

1917: The British royal family change their name from the House of Saxe-Coburg and Gotha to the House of Windsor during WWI to hide their German lineage

1926: Elizabeth is born in London

1933/34: Elizabeth and the queen mother salute the Nazis while staying at the royal family's rural Balmoral estate in Scotland

https://en.wikipedia.org/wiki/House_of_Wettin