Baudoin I and II, Counts of Flanders, in Eudes, Comte de Paris et Roi de France, pgs. 99 and 222

Baudoin I and II and Arnoul, Counts of Flanders, in Les Origines de L'Ancienne France, pgs. 34-35 and footnote 4 and 39-40 and footnote 2

Baudoin I and II and Arnoul, Counts of Flanders, in Revue Historique, pgs. 9-11 and 13-15 and footnote 1

Baudoin I and II, Counts of Flanders, in Bibliotheque de L'Ecole des Hautes Etudes, pgs. 99 and 222

Charles, Roi de France, in La Frontiere D'Argonne, pg. 4

Baudoin I and II and Arnoul I and II de Flandre in Chronologie de la France Medievale, pgs. 33, 34, 35, 37, 38, 40, 41, 42 and 43

Judith, Daughter of King Charles of France, in Asser's Life of Alfred, pgs. 8, 10, 15 and 16

Judith, Daughter of King Charles of France, in Guizot's Popular History of England, pg. 43-44

Ancestry of Matilda de Flandre in The Royal Families of England, Scotland and Wales, pg. v-vii

Judith, Daughter of King Charles of France, in Alfred the Great, pg. 2

Judith, Daughter of King Charles of France, in England's Queens, The Biography, pg. 19-21

Lineage from Charles Martell to Charles Constantine

Judith, Daughter of Charles, King of France, in In the Days of Alfred the Great, pgs. 85-86, 88-91, 113 and 121

Judith, Daughter of Charles, King of France, in The History of England from the Earliest Times to the reign of Queen Victoria, pg. 39-40

Counts of Flanders in Ataviae Regiae, pg. 12

Judith, Daughter of Charles, King of France, in The Golden Dragon, Alfred the Great and his Times, pgs. 25, 26, 30, 31 and 32

Baudoin I, Count of Flanders, in Annales de Flandre, Vol. I, pgs. 115-117 and 123

Family of Buvinus page 3