Roger Fitz John de Baliol Clavering
Roger was born in 1217 in Whalton, England.¹   He died at the age of 32 in 1249 in Normandy.¹ 

 Isabel de Merlay
Isabel was born in 1220 in Morpeth, Northumberland, England.¹ 

 John Fitz Roger de Clavering
John was born in 1240 in Warkworth Castle, Alnwick, Northumberland, England.² 

 Robert Fitz Roger Clavering
Robert was born in 1247 in http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=hollye&id=I14724.¹   He died at the age of 63 on April 29th, 1310.¹