EUSTACHE [III] de Boulogne (-1125 or after). His parentage is specified in his donation to Saint-Bertin dated 1122, for the souls of "Eustacii comitis patris mei et Yde matris mee comitisse"[554]. He is not named as one of her sons by "Ida comitisse Boloniensis" in the latter's charter for the soul of her husband[555]. William of Tyre records him as brother of Godefroi and Baudouin, naming him last of the three[556]. It is not known whether this indicates that he was the youngest of the three brothers, or was simply a reflection of his less significant role in affairs in Palestine. His inheritance of the paternal possessions and titles suggests that he was the oldest brother, at any rate older than his brother Baudouin. He succeeded in [1087] as Comte de Boulogne et de Lens. This would normally be an indication of his seniority in the family. However, given the superior position of his brother Godefroi as Duke of Lower Lotharingia, it may have been decided that the less important paternal inheritance would pass to a younger son. He was a member of the company of Robert II Count of Flanders on the First Crusade, joining his brothers after arriving in Constantinople in 1097[557].Albert of Aix records the arrival in Constantinople of "Robertus Normannorum comes, Stephanus Blesensis, Eustachius frater prædicti Ducis", dated to early 1097 from the context[558]. In Palestine in 1099, he returned to Boulogne soon after. "Eustacius Bolonie comes" confirmed the possessions of the abbey of Samer by charter dated Jul 1112, subscribed by "Cononis de Fieules, Eustacii et Rogerii filiorum eius…"[559]. Albert of Aix records that Baudouin appointed "fratri Eustachio" as his successor on his deathbed if he would come to Jerusalem, or if he failed to come "Baldewinus de Burg"[560]. A legation left Jerusalem for Boulogne in Apr 1118 to invite him to succeed. Eustache left Boulogne for Jerusalem, but when he reached Apulia he received news that Baudouin du Bourg had been chosen as king. He refused to press his claim further, and retired to the Cluniac monastery at Rumilly in [1125]. "Eustachius olim comes Boloniensis nunc autem…monachus Cluniacensis" donated property to Cluny by charter dated 1125 which names "Maria uxore mea…[et] Mathildi filia mea", and is subscribed by "Stephani comitis Bolonie, Matildis comitisse"[561]. m (1102) MARY of Scotland, daughter of MALCOLM III "Caennmor/Bighead" King of Scotland & his second wife [St] Margaret of England (-31 May 1116 or 18 Apr 1118, bur Bermondsey Priory). Orderic Vitalis records that their mother sent Mary and her sister Eadgyth to be brought up by her sister Christina, nun at Romsey Abbey[562]. Florence of Worcester records that Henry I King of England arranged the marriage of "Mariam reginæ sororem" and "Eustatio Bononensium comiti" in [1102][563]. Her marriage is also recorded by Orderic Vitalis, who also names her daughter[564]. The Genealogica comitum Buloniensium records that "Eustachius, frater Balduini regis Iheruslame" married "Mariam filiam regis Scotiæ"[565]. The 12th century Cronica Regum Scottorum records the death "II Kal Jun" in 1116 of "Maria…comitissa" and her burial "apud Bermundseiam"[566]. The Chronicle of John of Fordun records that "Mary countess of Bouillon" died in "the third year before her sister´s death"[567]. Comte Eustache [III] & his wife had one child
