Eldredus de Plumpton
Eldredus was born in 1107 in Plumpton, Spofforth, West Riding, Yorkshire, England .  He died at the age of 38 in 1145 in Plumpton, Yorkshire, England.

 Petrinilla de York
Petrinilla was born in 1117 in Yorkshire, England.

 Sir Peter de Plumpton
Peter was born about 1133 in Plumpton, York, England.