Adolphus Cambridge, 1st Marquess of Cambridge, born Prince Adolphus of Teck and later the Duke of Teck, was a relative of the British royal family, a great-grandson of George III and younger brother of Queen Mary, the wife of George V. In 1900, he succeeded his father as Duke of Teck in the Kingdom of Württemberg. He relinquished his German titles in 1917 to become Marquess of Cambridge.

Mary of Teck was Queen of the United Kingdom and the British Dominions, and Empress of India, from 6 May 1910 until 20 January 1936 as the wife of King-Emperor George V.