Eustace I Comte de Boulogne

  General Notes:

~Cokayne's Complete Peerage , (Aumale), Vol. I, p.352, Eustace I, comte de Boulogne was the father of Lambert, comte de lens en Artois who married Adeliz, the illegitimate daughter of Roert, Duke of the Normans and the sister of William the Conqueror. ¹⁴¹

~Emperor Charlemagnes Descendents, vol. II, p. 49 & Weis' Ancestral Roots . . ., 8th Edition, Maud of Louvaine, m. Eustace I, count of Boulougne, d. 1049 ^{529 ,160}

~An Analysis of the Domesday Book of the County of Norfolk, "Predigree of Count Eustace," p. 13 ⁷⁸²

~Turton's The Plantagenet Ancestry, p. 105 ⁴⁵⁰

Eustace married Maud de Lovaine, daughter of Lambert I "le Barbu" Comte de Brabant et Louvaine and Gerbega de Lorraine.