Adelaide of Weimar-Orlamünde (c. 1055 - 28 March 1100) was the daughter of Otto I of Meissen and a member of the family of the counts of Weimar and Orlamünde.
[4] Hermann was killed in a duel with Albert III of Namur, in a battle near Dalhem on 20 September 1085.
[5] From at least 1097 onwards, Henry was the successor to some of the lands and titles of Adelaide's previous husband, Hermann II, calling himself 'count palatine of the Rhine'.
Henry adopted Siegfried, Adelaide's younger son from her marriage to Adalbert, as his heir.
The image on the seal depicts the profile bust of a veiled female figure, holding an open book and a fleur-de-lis sceptre ending in a quatrefoil.