The title of Duc de Dalberg was created by the French Emperor

Napoleon I Napoleon Bonaparte ; it, Napoleone Bonaparte, ; co, Napulione Buonaparte. (born Napoleone Buonaparte; 15 August 1769 – 5 May 1821), later known by his regnal name Napoleon I, was a French military commander and political leader who ...

on 14 April 1810 for Emmerich von Dalberg, the nephew of

Karl Theodor von Dalberg Karl Theodor Anton Maria von Dalberg (8 February 1744 – 10 February 1817) was Prince- Archbishop of Regensburg, Arch-Chancellor of the Holy Roman Empire, Bishop of Constance and Worms, prince-primate of the Confederation of the Rhine and ...

, Prince-Primate of the Confederation of the Rhine and

Grand Duke of Frankfurt The Grand Duchy of Frankfurt was a German satellite state of Napoleonic creation. It came into existence in 1810 through the combination of the former territories of the Archbishopric of Mainz along with the Free City of Frankfurt itself. Histor ...

. He died on 27 April 1833. His daughter and heiress married firstly Sir Richard Acton, 7th Baronet (by whom she was the mother of John Dalberg-Acton, 1st Baron Acton) and secondly Granville George Leveson-Gower, 2nd Earl Granville, but as the Duke had no sons, the title became extinct. However, by decree of the Emperor Napoleon III, 2 March 1859, the extinct Dalberg dukedom was revived and extended to the Emmerich de Dalberg's first cousin twice removed,

Charles de Tascher de La Pagerie Charles is a masculine given name predominantly found in English and French speaking countries. It is from the French form ''Charles'' of the Proto-Germanic name (in runic alphabet) or ''*karilaz'' (in Latin alphabet), whose meaning was "f ...

(who was also a second cousin once removed of Napoleon III), and redesignated as Duc de Tascher de La Pagerie. It became extinct again at the death of Charles's son Louis Robert in 1902, though the senior branch of the Tascher de La Pagerie family (who were unrelated to the 1st Duc de Dalberg but distant relatives of Empress

Josephine de Beauharnais Josephine may refer to: People * Josephine (given name), a given name (including a list of people with the name) * Josephine (singer), a Greek pop singer Places *Josephine, Texas, United States *Mount Josephine (disambiguation) * Josephine Count ...

) later illegally assumed the ducal title.

Ducs de Dalberg, later de Tascher de La Pagerie (1810)

* Emmerich Joseph Franz Heinrich Felix Dismas Kämmerer von Worms gt. von Dalberg, 1st Duc de Dalberg (1773-1833) *

Charles Joseph Louis Robert Philippe de Tascher de La Pagerie, 2nd Duc de Tascher de La Pagerie Charles is a masculine given name predominantly found in English and French speaking countries. It is from the French form ''Charles'' of the Proto-Germanic name (in runic alphabet) or ''*karilaz'' (in Latin alphabet), whose meaning was "f ...

(1811-1869) * Louis Robert de Tascher de La Pagerie, 3rd Duc de Tascher de La Pagerie (1840-1902) {{DEFAULTSORT:Dalberg, Duc De * fr:Famille de Tascher#Liste des ducs de Tascher de La Pagerie