Alberic II Comte De Dammartin
Alberic II Comte was born in 1148 in Dammartin, Seine-Et-Marne, France.  He died at the age of 52 on September 19th, 1200 in London, Middlesex, England.

 De Ponthieu Mathilde De Clermont De Ponthieu
Mathilde was born about 1138 in Ponthieu, Ain, France.  She died in October 1200.

 Agnes De Dammartin
Agnes was born about 1166 in Buckinghamshire, England.

 Juliane de Dammartin
Juliane was born about 1170 in England.

 Simon II Comte De Dammartin
Simon II Comte was born about 1180 in Dammartin, Seine-et-Marne, France.  He died on September 21st, 1239 in Abbeville, Somme, France.

 Aelis De Dammartin

 Alice De Dammartin