When the British Royal Family abandoned all German titles by Letters Patent issued by King George V in June 1917, Prince Alexander of Teck gave up the title "Prince of Teck" in the Kingdom of Württemberg and the style "Serene Highness", and took the surname "Cambridge,". For a short time he was known as Sir Alexander Cambridge, then the Earl of Athlone. Their two surviving children also lost their Württemberg princely titles. 