 The forbidden marriage of Mademoiselle and Lauzun

"Mademoiselle", Louis XIV's first cousin, possessed considerable properties, in particular the principality of Dombes and the comté of Eu.After having declared that he would not oppose her marriage to the Duke of Lauzun, the King had it cancelled the day before the ceremony planned for 18 December 1670.He then had Lauzun imprisoned in Pignerol (where he stayed for ten years) in order to exchange his freedom against the principality of Dombes and the comté of Eu, which he bequeathed to the Duke of Maine, his illegitimate son from his affair with Madame de Montespan.