Texas Teck-Cambridge Family Francis, Duke of Teck Children Mary, Queen of the United Kingdom Adolphus Cambridge, 1st Marquess of Cambridge Prince Francis of Teck Alexander Cambridge, 1st Earl of Athlone Adolphus Cambridge, 1st Marquess of Cambridge Children George Cambridge, 2nd Marquess of Cambridge Mary Somerset, Duchess of Beaufort Lady Helena Gibbs Lord Frederick Cambridge Grandchildren Lady Mary Whitley Alexander Cambridge, 1st Earl of Athlone Children Lady May Abel Smith Rupert Cambridge, Viscount Trematon Prince Maurice of Teck