Berthold IV, Herzog von Zähringen
Berthold IV, Herzog von was born in 1144.  He died at the age of 42 on December 8th, 1186.

 Heilwig von Froburg
Heilwig von was born in 1157.  She died before 1183.

 Anna von Zähringen
Anna von was born about 1165 in <Urach,Baden,Germany>.¹   She died in Y.¹ 

 Princess Agnes of Zähringen
Princess Agnes of was born in 1184.  She died at the age of 55 on May 10th, 1239.