However, when addressed as a peer, Lord, Lady or Baroness is followed by the name of his or her barony, not his personal name. This is relevant when a baron or baroness's title is completely different from his or her personal surname (e.g. William Thomson, Lord Kelvin ), or includes a territorial designation in addition to his surname (e.g. Martin Rees, Lord Rees of Ludlow ).
Baroness Wilhelmine von Dörnberg: 4. Albert, 8th Prince of Thurn and Taxis: 18. Duke Maximilian Joseph in Bavaria: 9. Duchess Helene in Bavaria: 19. Princess Ludovika of Bavaria: 2. Prince Raphael Rainer of Thurn and Taxis: 20. Archduke Joseph, Palatine of Hungary: 10. Archduke Joseph Karl of Austria: 21. Duchess Maria Dorothea of Württemberg: 5.