 During World War I, anti-German feeling in the United Kingdom led Frederick's uncle, King George V to change the name of the royal house from the Germanic House of Saxe-Coburg-Gotha to the more English sounding House of Windsor.The King also renounced all his Germanic titles for himself and all members of the British Royal Family who were British subjects.In response to this, the Duke of Teck renounced, through a Royal Warrant from the King, dated 14 July 1917, his title of Duke of Teck in the Kingdom of Württemberg and the style "His Highness".