Lothaire married Richenza de Northeim 1100. Richenza (daughter of Henri de Northeim and Gertrude von Braunschweig) was born Abt 1094; died 10 Jun 1141. [Group Sheet]
Gertrude married Heinrich Welf 29 May 1127. Heinrich (son of Heinrich von Bayern and Wulfhilda von Sachsen) was born Abt 1098; died 20 Oct 1139. [Group Sheet]
Heinrich married Mecktilde Plantagenêt 1 Feb 1168. Mecktilde (daughter of Henri II Plantagenêt King of England and Aliénor d'Aquitaine Queen of England) was born 1156, London, Middlesex, England; died 28 Jun 1189. [Group Sheet]
Heinrich married Agnès de Hohenstaufen 1194. Agnès (daughter of Conrad de Hohenstaufen and Irmgard von Henneberg) was born 1176; died 1204. [Group Sheet]
Wilhelm married Hélène de Danemark 1202. Hélène died 1233. [Group Sheet]