Mein Herr Wilhelm great idea though I am not sure if Harry would be allowed to join Queen as a band member once he started playing in public. Maybe he could come to chordie for good music advice? I supose you would already know the royal connection to Germany. Edward VII and, in turn, his son, George V, were members of the German ducal House of Saxe-Coburg and Gotha by virtue of their descent from Albert, Prince Consort, husband of Queen Victoria, the last British monarch from the House of Hanover. High anti-German sentiment amongst the people of the British Empire during World War I reached a peak in March 1917, when the Gotha G.IV, a heavy aircraft capable of crossing the English Channel, began bombing London directly and became a household name. In the same year, on 15 March, King George's first cousin, Nicholas II, the Emperor of Russia, was forced to abdicate, which raised the spectre of the eventual abolition of all the monarchies in Europe. The King and his family were finally convinced to abandon all titles held under the German Crown and to change German titles and house names to anglicised versions. Hence, on 17 July 1917, a royal proclamation issued by George V declared:
Now, therefore, We, out of Our Royal Will and Authority, do hereby declare and announce that as from the date of this Our Royal Proclamation Our House and Family shall be styled and known as the House and Family of Windsor, and that all the descendants in the male line of Our said Grandmother Queen Victoria who are subjects of these Realms, other than female descendants who may marry or may have married, shall bear the said Name of Windsor....
The name had a long association with monarchy in Britain, through the town of Windsor, Berkshire, and Windsor Castle where Harry and Meghan got marrried.