| Family with parents |
| father |
Jordan St Martin Birth: about 1170 — St Martin, Wareham, Devon, England Death: about February 7, 1222 — Deane Basingstoke, Hampshire, England |
|
Joan Fitz Walter Birth: about 1210 — Sutton Wadron, Dorset, England Death: about 1263 — St Martin Wareham, Dorset, England |
|
|
Marriage: — |
|
| elder brother |
Jordan de St Martin Birth: about 1200 30 — Hampshire, England Death: about 1223 |
|
23 years himself |
William De St Martin Birth: about 1222 52 — Dartington, Devon, England Death: about June 24, 1291 — Deane Basingstoke, Hampshire, England |
| Family with Amphelicia … |
| himself |
William De St Martin Birth: about 1222 52 — Dartington, Devon, England Death: about June 24, 1291 — Deane Basingstoke, Hampshire, England |
| wife |
Amphelicia … Birth: about 1225 — Wiltshire, England Death: |
|
Marriage: — |
|
| son |
Sir Reginald De St Martin Birth: about 1250 28 25 — West Dean, Wiltshire, England Death: about 1315 — Little Cote Park, Wiltshire, England |