Roger de Mowbray
Roger was born in 1218 in Axholme, Lincolnshire, England.  He died at the age of 48 in November 1266.

 Maud (Matilda) de Beauchamp
Maud (Matilda) was born about 1238 in Bedford, England.  She died in April 1273.

 Joan de Mowbray
Joan was born before 1245.  She died after 1261.

 Roger de Mowbray
Roger was born in 1254 in Axholme, Lincolnshire or Thirsk,Hovington,Yorkshire,England.  He died at the age of 43 on November 21st, 1297 in Ghent, Netherlands.  He was buried in Fountains Abbey.