Four or more generations of descendants of John de Grey, 1st Baron Grey of Rotherfield (c1271-1311) if they are properly linked:
1. John de Grey, 1st Baron Grey of Rotherfield (c1271-1311)
- 2. Joan de Grey (1291-1338)
- 2. John de Grey, 2nd Baron Grey of Rotherfield (1300-1359)
- 3. John de Grey, 3rd Baron Grey of Rotherfield (1319-1375)
- 4. Maud de Grey (c1338-1390)
- 5. Joyce de Botetourt (-1407) ... (more)
- 5. Ann Harcourt (1371-) ... (more)
- 5. John Harcourt (1371-c1406) ... (more)
- 5. Thomas Harcourt (1377-1420) ... (more)
- 5. Richard Harcourt (1379-c1431) ... (more)
- 5. Jane Harcourt (1381-) ... (more)
- 5. Robert Harcourt (1382-) ... (more)
- 5. Catherine Harcourt (1383-) ... (more)
- 5. Isabel Harcourt(1385-) ... (more)
- 4. John de Grey (c1345-?)
- 4. Bartholomew de Grey, 4th Baron Grey of Rotherfield (1347-?)
- 4. Robert de Grey, 5th Baron Grey of Rotherfield (1349-1387)
- 5. Joan de Grey (1386-1408) ... (more)
- 4. Richard de Grey (c1355-?)
- 4. Brian de Grey
- 4. Maud de Grey (c1338-1390)
- 3. Maud de Grey (c1321-1385)
- 3. Joan de Grey (?-?)
- 3. John de Grey, Baron Marmion (1343-1368)
- 3. Robert de Grey (c1345-bef1367)
- 3. John de Grey, 3rd Baron Grey of Rotherfield (1319-1375)