The French title of duc de Plaisance (English: Duke of Piacenza) was created on 24 April 1808 by Napoleon I for Charles-François Lebrun, Arch-Treasurer of the Empire and former Consul. The title became extinct in 1926, upon the death of the sixth duke.

Coat of arms of the first duke

List of ducs de Plaisance

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  1. 1808-1824 : Charles-François Lebrun (1739-1824), 1st duc de Plaisance.
  2. 1824-1859 : Anne Charles Lebrun (1775-1859), 2nd duc de Plaisance, son of the preceding.
  3. 1859-1872 : Charles Louis Alexandre Jules Lebrun (1811-1872), 3rd duc de Plaisance, nephew of the preceding.
  4. 1872-1907 : Louis Armand Joseph de Maillé de La Tour-Landry (1860-1907), 4th duc de Plaisance, maternal great-grandson of the 1st Duke.
  5. 1907-1913 : Armand Louis Joseph François de Maillé de La Tour-Landry (1892-1913), 5th duc de Plaisance, son of the preceding.
  6. 1913-1926 : François Charles Edmond Marie de Maillé de La Tour-Landry (1862-1926), 6th duc de Plaisance, uncle of the preceding, title extinct upon his death.