GISELBERT I COUNT von LUXEMBURG
He died on August 14th, 1059.¹ 

 CONRAD I COUNT von LUXEMBURG
CONRAD I COUNT was born about 1040 in Trier, Rhineland, Germany.¹   He died on August 8th, 1086.¹ 

 HERMANN COUNT de LUXEMBURG
He died on September 28th, 1088.¹