Dietrich (Thierry) d' ALSACE, COUNT OF FLANDERS
He married Sibilla d' Anjou, Countess of Flanders 1134 . Sibilla d' Anjou, Countess of Flanders was born at of Anjou, France Abt 1105 daughter of Foulques V "le Jeune" Count of Anjou, King of Jerusalem and Ermengarde (Ermentrude) du Maine, Countess of Anjou .
They were the parents of 2
children:
Marguerite de Lorraine, Countess of Flanders
born Abt 1135.
Matthieu d' Alsace, Count of Boulogne
born Abt 1137.
Dietrich (Thierry) d' Alsace, Count of Flanders died 17 Jan 1168 .
Sibilla d' Anjou, Countess of Flanders died 1165/67 .