John 2nd Baron Marmion , of Tanfield, Sir
John 2nd Baron was born about 1292 in Winteringham, Glanford Brigg, Lincolnshire, England.  He died on April 30th, 1335 in Tanfield, North Ride Yorkshire, England.

 Maud de Furnival
Maud de was born about 1293 in Worksop, Nottinghamshire, England.  She died after 1348 in West Tanfield, North Ride Yorkshire, England.

 Avice Marmion
Avice was born about 1310 in Wethrington, Lincolnshire, England.  She died in Cogges, Whitney, Oxfordshire, England.

 Joan Marmion
Joan was born about 1312 in Wethrington, Lincolnshire, England.  She died in 1362 in Tattershall, Horncastle, Lincolnshire, England.

 Robert 3rd Baron Marmion , of Tanfield, Sir
Robert 3rd Baron was born about 1314 in Tanfield, North Ride Yorkshire, England.  He died before 1360 in (dsp).