Nicholas St. Omer I
Nicholas was born about 1184 in St. Omer, France.  He died in 1217.

 Margareta of Hungary
Margareta was born in 1178.  She died at the age of 45 in 1223.

 William de Saint Omer
William was born in 1228 in Brundale, Norfolk, England.  He died after October 19th, 1265 in Bramshaw, Norfolk, England.