Roger de Lumley
Roger was born about 1236 in Lumley, Durham, England.  He died before 1273.

 Sibilla Morwick
Sibilla was born before 1270.  She died on July 26th, 1298.

 Robert de Lumley
Robert was born about 1272 in W. Cheryton, Northumberland, England.  He died about 1338.