Duke of Elchingen
The titles of Duc d'Elchingen and Prince de La Moskowa were created by Napoleon in 1808 and 1813 respectively for Michel Ney, the Marshal of France. Both titles commemorate victories in which the Marshal played a part. Clauses in the patents of creation ensured that the two titles would never be held by the same person if there was another heir living, a similar situation to the British titles of Duke of Hamilton and Earl of Selkirk. However, the titles merged in 1928 and remained so until they both became extinct in 1969.
Ducs d'Elchingen (1808)
- Michel Ney, 1st Duc d'Elchingen (1769-1815)
- Michel Louis Félix Ney, 2nd Duc d'Elchingen (1804-1854), second son of the 1st Duke, confirmed in his title in 1826
- Michel Aloys Ney, 3rd Duc d'Elchingen (1835-1881), only son of the 2nd Duke
- Charles Aloys Jean Gabriel Ney, 4th Duc d'Elchingen (1873-1933), younger son of the 3rd Duke, succeeded as 5th Prince de La Moskowa in 1928
- Michel Georges Napoléon Ney, 5th Duc d'Elchingen, 6th Prince de La Moskowa (1905-1969), only son of the 4th Duke
Princes de La Moskowa (1813)
- Michel Ney, 1st Prince de La Moskowa (1769-1815)
- Joseph Napoléon Ney, 2nd Prince de La Moskowa (1803-1857), eldest son of the 1st Prince
- Edgar Napoléon Henry Ney, 3rd Prince de La Moskowa (1812-1882), fourth son of the 1st Prince
- Léon Napoléon Louis Michel Ney, 4th Prince de La Moskowa (1870-1928), elder son of the 3rd Duc d'Elchingen
- Charles Aloys Jean Gabriel Ney, 4th Duc d'Elchingen, 5th Prince de La Moskowa (1873-1933), younger son of the 3rd Duc d'Elchingen
- Michel Georges Napoléon Ney, 5th Duc d'Elchingen, 6th Prince de La Moskowa (1905-1969), only son of the 5th Prince
Sources:
- http://pages.prodigy.net/ptheroff/gotha/ney.html