Louis I, Duke of Anjou was a French prince, the second son of John II of France and Bonne of Bohemia. His career was markedly unsuccessful. Born at the Château de Vincennes, Louis was the first of the Angevin branch of the French royal house. His father appointed him Count of Anjou and Count of Maine in 1356, and then raised him to the title Duke of Anjou in 1360 and Duke of Touraine in 1370.

Joanna I, also known as Johanna I, was Queen of Naples, and Countess of Provence and Forcalquier from 1343 to 1382; she was also Princess of Achaea from 1373 to 1381.