(1299)||William de Grandison, 1st Baron Grandison||1299||1335|| |- |Baron Havering (1299)||John de Havering, 1st Baron Havering||1299||1329|| |- |Baron Lancaster (1299)||Henry Plantagenet, 1st Baron Lancaster||1299||1345|| |- |Baron Leyburn (1299)||William de Leyburn, 1st Baron Leyburn||1299||1310||Died; none of his heirs were summoned to Parliament in respect of this Barony |- |rowspan="3"|Baron Lovel (1299)||John Lovel, 1st Baron Lovel||1299||1311||Died |- |John Lovel, 2nd Baron Lovel||1311||1314|| |- |John Lovel, 3rd Baron Lovel||1314||1347|| |- |Baron Moels (1299)||Nicholas de Moels, 2nd Baron Moels||1309||1315||Died; none of his heirs were summoned to Parliament in respect of this Barony |- |Baron Mohun (1299)||John de Mohun, 1st Baron Mohun||1299||1330|| |- |Baron Mortimer of Chirke (1299)||Roger de Mortimer, 1st Baron Mortimer of Chirke||1299||1336|| |- |Baron Multon of Egremont (1299)||Thomas de Multon, 1st Baron Multon of Egremont||1299||1322|| |- |rowspan="2"|Baron Percy (1299)||Henry de Percy, 1st Baron Percy||1299||1315||Died |- |Henry de Percy, 2nd Baron Percy||1315||1352|| |- |Baron Peyvre (1299)||Johny Peyvre, 1st Baron Peyvre||1299||1316||Died; Barony probably terminated |- |rowspan="2"|Baron Rivers of Ongar (1299)||John Rivers, 1st Baron Rivers||1299||1311||Died |- |John Rivers, 2nd Baron Rivers||1311||1350|| |- |Baron Saint Amand (1299)||Almaric de St Amand, 1st Baron Saint Amand||1299||1310||Died, Barony extinct |- |Baron Scales (1299)||Robert de Scales, 2nd Baron Scales||1305||1324|| |- |Baron Stafford (1299)||Ralph de Stafford, 2nd Baron Stafford||1309||1372|| |- |Baron Tregoz (1299)||Henry de Tregoz, 2nd Baron Tregoz||1305||1322|| |- |Baron Teyes (1299)||Henry de Teyes, 2nd Baron Teyes||1308||1321|| |- |Baron Valence (1299)||Aymer de Valence, 1st Baron Valence||1299||1323|| |- |rowspan="2"|Baron Vavasour (1299)||William de Vavasour, 1st Baron Vavasour||1299||1313||Died |- |Walter de Vavasour, 2nd Baron Vavasour||1313||1325|| |- |Baron Vere (1299)||Hugh de Vere, 1st Baron Vere||1299||1318||Died, Barony extinct |- |rowspan="2"|Baron Welles (1299)||Adam de Welles, 1st Baron Welles||1299||1311||Died |- |Robert de Welles, 2nd Baron Welles||1311||1320|| |- |Baron Zouche (1299)||Alan La Zouche, 1st Baron Zouche||1299||1314||Died, Barony fell into abeyance |- |Baron Toni (1299)||Robert de Toni, 1st Baron Toni||1299||1310||Died, Barony extinct |- |Baron Beauchamp of Somerset (1299)||John de Beauchamp, 1st Baron Beauchamp||1299||1336|| |- |Baron Cauntelo (1299)||William de Cauntelo, 2nd Baron Cauntelo||1308||1321|| |- |rowspan="2"|Baron de Clifford (1299)||Robert de Clifford, 1st Baron de Clifford||1299||1314||Died |- |Roger de Clifford, 2nd Baron de Clifford||1314||1322|| |- |Baron Darcy (1299)||Philip Darcy, Baron Darcy||1299||1332|| |- |Baron De La Ward (1299)||Simon de La Ward, 2nd Baron De La Ward||1307||1324|| |- |Baron Ferrers of Groby (1299)||William Ferrers, 1st Baron Ferrers of Groby||1299||1325|| |- |Baron FitzReginald (1299)||John FitzReginald, 1st Baron FitzReginald||1299||1310||Died; none of his heirs were summoned to Parliament in respect of this Barony |- |Baron Furnivall (1299)||Thomas de Furnivall, 1st Baron Furnivall||1299||1332|| |- |Baron Grendon (1299)||Ralph Grendon, 1st Baron