http://fmg.ac/Projects/MedLands/LOTHARINGIAN%20(LOWER)%20NOBILITY.htm#ArnoldILoozdied1139

ARNAUD [I] de Looz, son of EMMO Comte de Looz & his wife --- ([1050/60]-after 1125). m AGNES von Mainz, daughter of GERHARD Graf von Mainz & his wife Hedwig von Bliescastel. The primary source which confirms her parentage and marriage has not yet been identified.

Arnaud [I] & his wife had [two] children:

• 1. ARNAUD (-after 1125). "Comes Arnulfus de Los et filius eius Arnolfus" witnessed a charter of Albéron Bishop of Liège dated 1125[713]. [same person as…? ARNAUD [II] ([1095/1105]-11 Apr, after 1136). Comte de Looz. ... m [ALEIDE, daughter of ---. ...

Comte Arnaud [II] & his wife had [five] children: ...

• 2. [BEATRIX [de Looz] (-after 1132). ... m ARNOUT [III] Graaf van Aarschot, son of --- ([1080/1100]-after [1136]).]