Duke of Aubigny is a title that was created in the Peerage of France in 1684. It was granted by King Louis XIV of France to Louise de Kérouaille, the last mistress of King Charles II of England, and to descend to Charles's illegitimate issue by her, namely to the descendants of Charles Lennox, 1st Duke of Richmond, 1st Duke of Lennox (1672–1723) of Goodwood House in Sussex. Louis XIV also granted her the Château de la Verrerie, a former secondary seat of the Stewart Seigneurs d'Aubigny, Franco-Scottish cousins of the Stewart monarchs, seated from 1422 to 1672 at the Château d'Aubigny in the parish and manor of Aubigny-sur-Nère in the ancient province of Berry in France.

The now-extinct title of Earl of Richmond was created many times in the Peerage of England. The earldom of Richmond was initially held by various Breton nobles; sometimes the holder was the Breton duke himself, including one member of the cadet branch of the French Capetian dynasty. The historical ties between the Duchy of Brittany and this English earldom were maintained ceremonially by the Breton dukes even after England ceased to recognize the Breton dukes as earls of England and those dukes rendered homage to the King of France, rather than the English crown. It was then held either by members of the English royal families of Plantagenet and Tudor, or English nobles closely associated with the English crown. It was eventually merged into the English crown during the reign of Henry VII of England and has been recreated as a Dukedom.