Robert le Brun
Robert was born in 1284 in Drumbugh, Cumberland, England.  He died at the age of 55 in 1339.

 Margaret
Margaret was born in 1288 in Drubagh, Cumberland, England.  She died after 1312.

 Richard le Brun
Richard was born about 1300 in Bownwys, Cumberland, England.  He died after 1342.