Guy II De Ponthieu
Guy II was born in 1090.  He died at the age of 57 in 1147.

 Ida
Ida was born in 1090.  Ida is no longer alive.

 Jean Ier De Ponthieu
Jean Ier was born in 1142.  He died at the age of 49 on June 30th, 1191 in , Saint-Jean-D'acre, , Isr.