John 2nd Baron de , Earl of Buchan, Mp Beaumont - Pedigree | FamilyCentral
 1318 - 10 May 1342
 Abt 1263 - 10 Mar 1339/40
 Abt 1281 - Bef 10 Aug 1349
 Bef 1235 - 9 May 1301
 Abt 1260 - 1320
 Abt 1242 - 5 Dec 1304
 Abt 1242 - Bef 8 Mar 1315