Richard de Plessitis
Richard was born about 1230 in Middlesex, England.  He died after 1292.

 Gladyna de Romeyn
Gladyna was born about 1235 in Middlesex, England.  She died before 1292 in Edmonton, Middlesex, England.

 Richard de Wrotham
Richard was born in 1265 in Sheyscaten, Middlesex, England.