Robert Plumpton
Robert was born about 1268 in Plumpton, Yorkshire, England.  He died in 1325 in Plumpton, Yorkshire, England.

 Lucy De Ros
Lucy was born about 1270 in Plumpton, Yorkshire, England.  She died after 1332.

 William De Plumpton
William was born about 1294 in Plumpton, Yorkshire, England.  He died in 1362.

 Eustacia De Plumpton