found: Kervran, M. Les grandes heures de Jean de Montfort et de Jeanne la Flamme, 1341-1345, pendant la guerre de succession de Bretagne, 1981:t.p. (Jeanne la Flamme) p. 11 (Jeanne de Flandre; Jeanne de la Flamme) p. 106 (d. 1374)
found: Grande Larousse, c1962:v. 6, p. 338 (Jeanne de Flandre, princesse française, d. 1374 fille de Louis I-er, comte de Flandre, mariée à Jean de Montfort 1329, meurt en Angleterre)
found: The English fleet, in 1342, 1834?:p. 5 (Countess De Montfort) p. 10 (Jane, Countess of Britanny; [wife of] De Mountfort, Count of Britanny)
found: La Bretagne et son histoire, 4/20/00 <http://assoc.wanadoo.fr/identite.bretonne//identite-bretonne/histoire/fr-bretagnee̲th̲istoire.html>(Duke Jean III of Britanny d. without heirs; succession disputed between niece Jeanne de Penthièvre (wife of Charles de Blois) and half-brother Jean de Montfort, whose wife was Jeanne de Flandre, surnamed Jeanne la Flamme)
found: Encyc. Britannica, 4/21/00 <http://search.eb.com/bol/topic?idxref=145912>(under John (IV), claimant to the duchy of Brittany, d. 1345; widow Joan of Flanders)
found: Biog. nationale(Jeanne, granddaughter of Count of Flanders, m. Jean de Montfort 1329; son was Jean V)
found: DBF(under Jean, ducs de Bretagne: Jean IV (Jean de Montfort), d. 1345: wife Jeanne de Flandre)
found: RLIN, 4/20/00(hdgs.: Jeanne, comtesse de Montfort, fl. 1329-1342; Jeanne, consort of John IV, duke of Brittany [Jean de Montfort, d. 1345, is counted among Dukes of Brittany by some authorities and designated Jean IV, whereas NAF and others designate his son Jean (1341-1399) as Jean IV]; Montfort, Jeanne, Countess de; Jeanne de Flandre, countess of Montfort, fl. 1329-1342; Jeanne, de Flandre, d. 1374; usage: Jeanne de Montfort; Jeanne la Flamme)
