I Erard
I was born about 1078 in Brienne, France.  He died in 1114.

 Alice Agnes de Roucy
Alice Agnes was born after 1090 in Roucy, France.  She died after 1143 in Braine, France.  She was buried in St. Ives Abbey, Braine, France.

 Walter Gauthier
Walter was born about 1110 in Brienne, France.  He died in 1161.

 Félicité de Brienne
Félicité was born about 1112 in Brienne, France.