Heinrich I Count of Arnsberg
Heinrich I Count of was born in 1150 in Arnsberg,Westfalen,Prussia.  He died at the age of 53 in 1203.

 Ermengarde of Soest Baroness
Ermengarde of was born in 1152.  She died at the age of 63 in 1215.

 Princess Dorothea of Arnsberg-Rietberg
Princess Dorothea of was born in 1170.

 Count Heinrich II of Arnsberg
Count Heinrich II of was born in 1172.  He died at the age of 45 in 1217.

 Count Gottfried II of Arnsberg-Rietberg
Count Gottfried II of was born in 1173.  He died at the age of 62 in 1235.

 Princess Irmgard of Arnsberg-Rietberg
Princess Irmgard of was born in 1175.

 Princess Gertrud of Arnsberg
Princess Gertrud of was born in 1176.

 Konrad I Count Of Arnsberg-Rietberg
Konrad I Count Of was born about 1206 in Of,Arnsberg,Westfalen,Prussia.  He died about 1273.