LOUIS [I] von Looz, son of ARNAUD [II] Comte de Looz, Graf von Rieneck & his wife [Aleide ---] ([1125/30]-11 Aug 1171). "Arnoldus…comes de Los cum Lodovico filio meo" founded Averboden abbey by charter dated 1135[873]. "Arnoldus…comes de Los cum Lodovico filio meo" donated property to Averboden abbey, which they had founded, by charter dated 1135[874]. Comte de Looz. "Ludovicus…comes in Los" confirmed donations to Averboden abbey, including the donation by "comes de Duras…Godinus", by undated charter, dated 1154[875]. The Annales Sancti Disibodi (Continuatio) name "…Luodewicus comes de Lohim…" among those present with the king when he celebrated Christmas at Worms in 1155[876]. Stadtgraf von Mainz 1159/62. Graf von Rieneck 1155/59. Vogt von Averbode.
m AGNES von Metz, daughter of FOLMAR [VIII] Graf von Metz und Homburg & his wife Mechtild von Dagsburg (-before 1180). The primary source which confirms her parentage has not yet been identified. Heiress of Longwy. "Agnes…Comitissa de Los…quam filii mei" donated the hospital of Grathem to the abbey of Villers by charter dated 1174 which names "domino nostro Ludovico comite"[877]. "Gerardus...comes de Los dominaque matre mea Agneta comitissa filioque eius Hugone fratre meo" granted privileges to "ville nostre de Brustemie", with the consent of "Rogero...de Curtereces et sorore eius Yda", by charter dated 1175[878].
Comte Louis [I] & his wife had seven children