| Family with parents |
| father |
Sir Thomas de Clare 6th Earl of Herfford Birth: 1248 — Tonbridge, Kent, England Death: September 19, 1287 — Thomond, Connaught, County Clare, Ireland |
| mother |
Lady Juliana Fitz Gerald Birth: 1249 21 15 — Dublin, Dublin, Ireland Death: 1309 — Thomond, Connaught, County Clare, Ireland |
|
Marriage: about 1270 — |
|
|
17 years herself |
Lady Margaret de Clare Birth: April 1, 1287 39 38 — Bunratty Castle, Clare, Ireland Death: April 13, 1342 — Badlesmere, Kent, England |
| Family with Lord Bartholomew de Badlesmere |
| husband |
Lord Bartholomew de Badlesmere Birth: April 13, 1275 — Badlesmere, Kent, England Death: April 14, 1322 — Blean, City of Canterbury, Kent, England |
| herself |
Lady Margaret de Clare Birth: April 1, 1287 39 38 — Bunratty Castle, Clare, Ireland Death: April 13, 1342 — Badlesmere, Kent, England |
|
Marriage: — |
|
| daughter |
Elizabeth de Badlesmere Countess Of Northampton Birth: 1313 37 25 — Chilham Castle, Badlesmere, Kent, England Death: June 8, 1356 — Windsor Castle, Berkshire, England, United Kingdom |