Gottfried III Von Arnsberg
Gottfried III was born in Arnsberg, Westphalia, Prussia.  He died about 1287.

 Adelheid von Blieskastel
Adelheid was born about 1210 in Blieskastel, Pfalz, Bavaria.  Adelheid is no longer alive.

 Mathilde Von Arnsberg
Mathilde was born about 1240 in Waldeck, Hessen-Nassau, Prussia.