Otto I, Margrave of Meissen
Otto I of Weimar or Orlamünde († 1067) was Count of Weimar- Orlamünde and 1062-1067 Margrave of Meissen.
He was the younger son of Count William III. of Weimar ( † 1039 ) and Oda von der Lausitz, daughter of Margrave Thietmar II
He married Adela of Brabant († 1083 ), probably a daughter of Reginar of lions, son of Lambert I of Leuven. She was a granddaughter of Baldwin IV of Flanders, probably from his second marriage with Eleanor of Normandy. Adela married in 1070 in second marriage Dedo I of Lusatia.
Progeny
- Adelheid von Weimar- Orlamünde († 1100) 1st marriage: Adalbert II of Ballenstedt ( Ascanians ) † ca 1080
- 2nd marriage: Count Palatine Herman II of Lorraine ( Ezzonen ), † 1085
- 3 Marriage: Count Palatine Henry II of Laach ( Wigeriche, or Luxembourg ), † 1095
- Oda († 1111) married to Margrave Egbert II of Meissen ( Brunonen ), † 1090
- Cunegonde (* 1055, † 1140 ) 1st marriage: Prince of Vladimir and Jaropolk Turau, † 1086, son of Izjaslav I. ( Rurik )
- 2nd marriage: Count Kuno of Beichlingen, † 1103 ( Northeim )
- 3 Marriage: Margrave Wiprecht II of Groitzsch, † 1124