Rasse Ier Ou Nassau De Gavre
Rasse Ier Ou Nassau was born in 1075.  Rasse Ier Ou Nassau is no longer alive.

 ? D'ath
? was born in 1080.

 Rasse II De Gavre
Rasse II was born in 1100.  He died at the age of 49 on June 27th, 1149.