GERHARD ([870/75][416]-killed in battle 22 Jun 910). The De Rebus Treverensibus sæculi VIII-X Libellus names two brothers "Gerardus et Meffridus" specifying that Gerhard married Oda, widow of King Zwentibold[417]. Regino records that in 897 "Stephanus, Odacar, Gerardus et Matfridus comites" had their honours confiscated, and the reconciliation of "Stephanus, Gerhardus et Matfridus" with King Zwentibold soon after[418]. Regino records that "Chuonradus comes" sent "filium suum Chuonradum" against "Gerardum et fratrem eius Matfridum" in 906[419]. The Annales Laubecenses record that "Gebehardum ducem et Liutfredum" were killed in battle against the Bavarians in 910[420]. m (after 13 Aug 900) as her second husband, ODA, widow of ZWENTIBOLD King of Lotharingia [Carolingian], daughter of OTTO "des Erlauchten" Duke of Saxony & his wife Hedwig ([884][421]-[2 Jul] after 952). Regino records that "Gerhard comes" married "Odam uxorem Zuendiboldi regis" after killing her first husband in battle in 900[422]. "Otto…rex" confirmed the donation of property "in pago…Hamalant in comitatu Vuigmanni" to St Moritz at Magdeburg by "nostra amita…Uota" by charter dated 30 Dec 952[423]. Jackman speculates[424] that she married thirdly Eberhard Graf im Oberlahngau, Pfalzgraf]. Gerhard & his wife had four children
http://fmg.ac/Projects/MedLands/LOTHARINGIAN%20%28UPPER%29%20NOBILITY.htm#_Toc260899872
note Philippe: filiation probable, mais pas certaine, je reste là