| Theobald Grenville |
| Father: Theobald Grenville | Mother: Joyce Beaumont |
| Born:
Abt 1367 of Stowe, Cornwall, England |
Died: |
| Spouse: Margaret Courtenay | Married:
Abt 1392 of Bideford, Devonshire, England |
| Children:
Sir William Granville John Granville | Brothers & Sisters: |