Research Notes:

The Vita Arnulfi names "Arnulfum comitem de Lo et Sophiam ducissam de Hungaria…et ducissam de Hui" as the children of Emmo Comte de Looz. The Gesta Abbatem Trudonensium names "nepote suo [=Gislebertus] comite Arnulfo de Los", although another passage names "Arnulfus comes de Los, nepos Ghislberti comitis de Durachio" suggesting that the former also refers to Count Arnaud's cousin not his grandfather.

Comte de Looz. Vogt of St Pierre, Liège 1086. “Comites Cono, Arnuldus de Loz, Reinerus, advocatus...” subscribed the charter dated to [25 Dec 1094/23 Sep 1095] under which Otobert Bishop of Liège donated “allodium de Hildenesen in Taxandria...et unum mansum in Herlechen” to the chapter of the Holy Cross, Liège. "...Comes Arnoldus de Lon, frater eius Theodericus..." witnessed the charter dated 1096 under which "Ida...filii mei ducis Godefridi" donated property to Münster-Bilsen abbey. "…Arnulfus comes de Loz…" witnessed the charter dated 1091 under which Henri de Verdun Bishop of Liège approved the foundation of Flône. “...Comes Gerardus, comes de Los, Arnulfus, et frater eius Theodericus, Gislebertus filius comitis Ottonis, Heinricus de Chui, Reinerus advocatus, Wilelmus de Dolchen, Arnulphus de Roden, Wigerus de Tudino, Mainerus de Cortereces...” witnessed the charter dated 1 Jun 1101 under which Emperor Heinrich IV confirmed the rights of “Albertus comes Namucensium” over the church of Andenne.

Stadtgraf und Vogt von Mainz: “Arnoldus Urbanus Comes...” witnessed the charter dated 11 May 1108 under which Archbishop of Mainz confirmed the foundation of Kloster Disibodenberg. "Arnulfus comes Lonensis et frater eius Theodericus" subscribed the charter dated 1111 under which "Otbertus…Leodiensis episcopus" declared that the church of Lixhe belonged to Liège Saint-Paul. "Comes Arnoldus, comes Emicho, comes Berhtolfus, Embricho camerarius et filii eius Salman et Embricho…" witnessed the charter dated 1112 under which Ceizolf Provost of St Johann at Mainz donated property.

Graf von Rieneck 1115. "Ludowicus de Turingia comes, Arnoldus urbis comes, Sigehardus comes, Bertolfus comes, Ludewicus comes, Gozwinus comes…" witnessed the charter dated 20 Jun 1118 under which Adalbert Archbishop of Mainz donated property "in placito Ludwici comitis" to Kloster St Johannes auf dem Bischofsberge, after the death of "Hildrudis vidue Wulferici ministerialis nostri". "Arnoldus comes, Gerlahus comes, Embricho vicedominus…" witnessed the charter dated 1119, before 15 Aug, under which Adalbert Archbishop of Mainz granted property to Stift St Maria at Mainz. “...Arnoldus urbis prefectus...” witnessed the charter dated 1124 under which Adalbert Archbishop of Mainz confirmed the foundation of a monastery of Gerode in Eichsfeld. "...Arnulfo comite de Los, advocato Sancti Jacobi...Theodericus frater comitis Arnulphi..." witnessed the charter dated 1 Apr 1125 under which Emperor Heinrich V confirmed a donation to Liège Saint-Jacques made by "Guda mulier nobilis". "Comes Arnulfus de Los et filius eius Arnolfus" witnessed a charter of Adalbéron Bishop of Liège dated 1125. Daris suggests that this is the last known mention of Comte Arnaud [I] and that the other later sources which name Comte Arnaud refer to his son Comte Arnaud [II].... He bases his speculation on the career of Arnaud [I], whose first mention he dates to 27 Mar 1082 (no source cited), which he assesses to have been too long if he had survived until after 1136. This suggestion is consistent with the chronology of the succeeding generations of the Looz family which ... appears more cogent with an additional generation inserted between Arnaud [I] and Louis [I]. ¹