Count Engelbert I of Mark
Count Engelbert I of was born in 1236 in <Sittard,Limburg,Neth.>.  He died at the age of 41 on November 16th, 1277 in Prussia.  He was buried in 1277 in Cappenberg.¹ 

 Kunigunde Von Blieskastel
Kunigunde Von was born about 1220 in Bliescastel.  She died before 1265 in Sittard,Limburg,Netherlands.¹ 

 Sophia Mark Countess
Sophia was born about 1245 in Koln,Rheinland,Prussia.  She died in 1302 in Prussia.

 Eberhard I Count Of The Mark
Eberhard I Count Of The was born about 1249 in <Koln,Rheinland,Prussia>.  He died on July 4th, 1308 in Rheinland,Prussia.¹ 

 Agnes Countess Of The Marck
Agnes Countess Of The was born about 1265 in <Of,Windeck,Rheinland,Prussia>.