Marie de Nemours

Marie de Nemours, originally known as Marie dOrlansLongueville , was the daughter of Henri II dOrlans, duc de Longueville. After the death of her brother Jean Louis Charles dOrlansLongueville in 1694 she succeeded him as sovereign Princess of Neuchtel, by then the last monarchical state within the Swiss Confederation, although she remained a prominent member of the French royal court.

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Source: Wikipedia