Talk:Arthur II, Duke of Brittany

daughters called Jeanne
As this is the only source, of those I can find (the others: www.thepeerage.com and www.genealogics.com as well as www3.dcs.hull.ac.uk), which lists two such daughters and says that Robert, Seigneur de Cassel and Robert, Comte de Marle are not the same person, I recommend either finding (and citing) clearifying evidence or combining these daughters into one. --VM (talk) 16:35, 17 March 2012 (UTC)

Further evidence for both daughters Joan being the same person is that the Robert III, Count of Flanders article indicates that the children of his son, Robert, Count of Marle included John, Lord of Cassel, an unlikely route for inheritance if the two Roberts are distinct. Additionally, consider that the birth and death years for both Joans are remarkably close.1bandsaw (talk) 00:25, 30 August 2013 (UTC)

Medieval Lands lists Jeanne de Bretagne [Joan of Brittany] (1296-24 Mar 1364) as the daughter of Arthur II, Duke of Brittany and Yolande of Dreux, Queen of Scotland; wife of Robert de Flandre, Seigneur de Cassel, Comte de Marle [Robert of Flanders, Lord of Cassel, Count of Marle], who is son of Robert III, Count of Flanders and Yolande II, Countess of Nevers. No other Jeanne/Joan is listed there as a daughter of Arthur. — Preceding unsigned comment added by 50.158.145.27 (talk) 09:25, 26 March 2014 (UTC)