Roger FitzJohn( - ca May 1249) Sir Alan de la Zouche
Isabella de Dunbar
Sir Robert FitzRoger Lord FitzRoger Margery de la Zouche
b. ca 1247
d. bef 29 Apr 1310
1st baron FitzRoger. Of Clavering, Essex.
b.  
d.  
Dau of Sir Alan La Zouche of Ashby, Leics - CP on Engaine & Clavering.
Children
Sir John FitzRobert Lord Clavering(aft 1266 - bef 13 Jan 1332)
Ellen FitzRoger( - 2 Jun 1339)
Edmund Clavering( - bef 14 Apr 1345)
Alan FitzRobert