| 1. Walter de Grymston |
 |
| B: |
Abt 1310 |
| P: |
North Grimston, Yorkshire, England |
| D: |
|
| P: |
Grimston (near Aldbrough), Yorkshire, England |
|
| 2. Sir Roger de Grymston |
|
| B: |
1280 |
| P: |
North Grimston, Yorkshire, England |
| M: |
1309 |
| P: |
Grimston (near Aldbrough), Yorkshire, England |
| D: |
1348 |
| P: |
Grimston (near Aldbrough), Yorkshire, England |
|
| 4. Knight Sir Martin de Grymston |
|
| B: |
1164 |
| P: |
Grimston (near Aldbrough), Yorkshire, England |
| M: |
|
| P: |
|
| D: |
|
| P: |
Grimston (near Aldbrough), Yorkshire, England |
|
| 8. Knight Sir John de Grymston |
=> |
|
| B: |
Abt 1140 |
| P: |
Grimston (near Aldbrough), Yorkshire, England |
| M: |
|
| P: |
|
| D: |
12 Oct 1165 |
| P: |
Grimston (near Aldbrough), Yorkshire, England |
|
Abt 1310 -
