Comte Robert de Lorraine
Robert was born in 1133 in Lorraine, Flandres, France.¹ 

 Eustache de Brienne
Eustache was born in 1133 in Brienne-le-Chateau, Aube, Champagne, France.¹ 

 Comte William d'Eu
William was born in 1175 in Eu, Seine-Maritime, Normandy, France.¹   He died at the age of 32 in 1207 in Hurstmonceaux Castle, Halisham, Sussex, England.¹