Maramaduke de Thweng , Sir Knight
Maramaduke de was born in 1180 in Thwing, Bridlington, East Ride Yorkshire, England.  He died at the age of 54 in 1234 in Lund, Beverley, East Ride Yorkshire, England.

 Emma Darrel , Heiress of Lund
Emma was born about 1190 in Lund, Beverley, East Ride Yorkshire, England.  She died in June 1279.

 Robert de Thweng , Lord of Kilton, Sir Knight
Robert de was born in 1214 in Thwing, Bridlington, East Ride Yorkshire, England.  He died at the age of 33 in 1247 in Kilton Castle, Cleveland, Yorkshire, England.

 Cecilia Thweng , Heiress of Flamborough
Cecilia was born in 1215 in Flamborough, Bridlington, East Ride Yorkshire, England.  She died at the age of 50 in 1265.