Princess Mary Adelaide of Cambridge British Royal (1833–1897), mother of Mary of Teck (1833–1897) Parents Princess Augusta of Hesse-Kassel Prince Adolphus, Duke of Cambridge Children Alexander Cambridge, 1st Earl of Athlone Prince Francis of Teck Adolphus Cambridge, 1st Marquess of Cambridge Mary of Teck Siblings Prince George, Duke of Cambridge Princess Augusta of Cambridge Partners Francis, Duke of Teck
