John Plantagenet, Lord of Beaufort

John of Lancaster, seigneur of Beaufort (present day Montmorency, Aube, arrond. d’Arcis-sur-Aube, canton de Chavanges) and Nogent-l’Artaud (Aisne, arrond. de Château-Thierry, canton de Charly), France. He married before July 1312 Alix de Joinville, widow of Jean d’Arcis, seigneur of Arcis-sur-Aube and Chacenay (died in or before 1307), and daughter of Jean de Joinville, seigneur de Joinville (Haute-Marne, arrond. Vassy, ch.-I. canton), Seneschal of Champagne, by his 2nd wife, Alix, daughter and heiress of Gautier, seigneur of Reynel. They had no issue. He died in France shortly before 13 June 1317. See Foundations 1(3) (2004): 198–199.