Joan de Clare1
F, #122451
Parents
| Relationships | 26th great-aunt of David Arthur Walker |
| Last Edited |
1 December 2025 15:42:49 |
Citations
- [S8250] Magna Carta Ancestry: A Study in Colonial and Medieval Families, 2nd Edition, 4 vols., Douglas Richardson, compiler, (Salt Lake City, Utah: self published, 2011), I:449. Hereinafter cited as Magna Carta Ancestry, 2nd Edition.
Baldwin de Redvers, 6th Earl of Devon
M, #122452, b. 1217, d. 15 February 1245
Parents
| Last Edited |
1 December 2025 16:23:47 |
| Occupation | Baldwin de Redvers, 6th Earl of Devon, was a feudal baron of Plympton in Devon and Lord of the Isle of Wight.1
|
| Birth | He was born in 1217.1 |
| Marriage | He married Amice de Clare daughter of Gilbert de Clare, 7th Earl of Clare, 4th Earl of Hertford, 5th Earl of Gloucester, 1st Lord of Glamorgan, and Lady Isabel Marshal, in 1235.1 |
| Death | Baldwin de Redvers, 6th Earl of Devon, died on 15 February 1245.1 |
Citations
- [S20258] "Isabel Marshal", Wikipedia https://en.wikipedia.org/wiki/Isabel_Marshal. Hereinafter cited as "Isabel Marshal".
Baldwin de Redvers, 7th Earl of Devon1
M, #122455, b. 1 January 1236, d. 1262
Parents
| Relationships | 1st cousin 25 times removed of David Arthur Walker |
| Last Edited |
1 December 2025 16:27:20 |
| Birth | Baldwin de Redvers, 7th Earl of Devon, was born on 1 January 1236.1 |
| Marriage | He married Margaret in 1257.1 |
| Death | He died in 1262.1 |
Citations
- [S20258] "Isabel Marshal", Wikipedia https://en.wikipedia.org/wiki/Isabel_Marshal. Hereinafter cited as "Isabel Marshal".
Isabella de Redvers, 8th Countess of Devon1
F, #122456, b. July 1237, d. 10 November 1293

Coat of arms of Isabella (de Redvers) de Forz, 8th Countess of Devon. Courtesy of Wikipedia.

Isabel's paternal coat of arms. These arms were later quartered by the Courtenay family, her heirs. Courtesy of Wikipedia.
Parents
| Relationships | 1st cousin 25 times removed of David Arthur Walker |
| Last Edited |
1 December 2025 16:38:56 |
Citations
- [S20258] "Isabel Marshal", Wikipedia https://en.wikipedia.org/wiki/Isabel_Marshal. Hereinafter cited as "Isabel Marshal".
- [S20259] "Isabel de Forz, 8th Countess of Devon", Wikipedia https://en.wikipedia.org/wiki/Isabel_de_Forz,_8th_Countess_of_Devon. Hereinafter cited as "Isabel de Forz, 8th Countess of Devon".
John de Redvers1
U, #122459
Parents
| Relationships | 2nd cousin 24 times removed of David Arthur Walker |
| Last Edited |
1 December 2025 16:28:25 |
| Died Young | John de Redvers died young.1 |
Citations
- [S20258] "Isabel Marshal", Wikipedia https://en.wikipedia.org/wiki/Isabel_Marshal. Hereinafter cited as "Isabel Marshal".
John de Forz1
M, #122460, d. Before 1260
Parents
| Relationships | 2nd cousin 24 times removed of David Arthur Walker |
| Last Edited |
1 December 2025 16:30:23 |
| Death | John de Forz died Before 1260.1 |
Citations
- [S20258] "Isabel Marshal", Wikipedia https://en.wikipedia.org/wiki/Isabel_Marshal. Hereinafter cited as "Isabel Marshal".
Teron de Forz1
M, #122461, d. Before 1260
Parents
| Relationships | 2nd cousin 24 times removed of David Arthur Walker |
| Last Edited |
1 December 2025 16:30:51 |
| Death | Teron de Forz died Before 1260.1 |
Citations
- [S20258] "Isabel Marshal", Wikipedia https://en.wikipedia.org/wiki/Isabel_Marshal. Hereinafter cited as "Isabel Marshal".
Avice de Forz1
F, #122464, d. Before April 1269
Parents
| Relationships | 2nd cousin 24 times removed of David Arthur Walker |
| Last Edited |
1 December 2025 16:46:03 |
| Birth | Avice de Forz was born.1 |
| Death | She died Before April 1269.1 |
Citations
- [S20259] "Isabel de Forz, 8th Countess of Devon", Wikipedia https://en.wikipedia.org/wiki/Isabel_de_Forz,_8th_Countess_of_Devon. Hereinafter cited as "Isabel de Forz, 8th Countess of Devon".
Aveline de Forz1
F, #122465, b. 1259, d. 1274
Parents
| Relationships | 2nd cousin 24 times removed of David Arthur Walker |
| Last Edited |
1 January 2026 11:26:11 |
| Name | Aveline de Forz was also known as Isabel de Forz.2 |
| Birth | She was born in 1259.1 |
| Marriage | She married Edmund "Crouchback" Plantagenet, 1st Earl of Lancaster, son of Henry III Plantagenet, King of England, and Eleanor, of Provence,, on 8 April 1269, in Westminster Abbey, Westminster, England, 51.498910, -0.128280G.3 |
| Death | Aveline de Forz died in 1274. Aveline died childless, 4 years after she married Edmund.1 |
Citations
- [S20259] "Isabel de Forz, 8th Countess of Devon", Wikipedia https://en.wikipedia.org/wiki/Isabel_de_Forz,_8th_Countess_of_Devon. Hereinafter cited as "Isabel de Forz, 8th Countess of Devon".
- [S20408] "Edmund Crouchback", Wikipedia https://en.wikipedia.org/wiki/Edmund_Crouchback. Hereinafter cited as "Edmund Crouchback".
- [S20260] "Edmund Crouchback", Wikipedia https://en.wikipedia.org/wiki/Edmund_Crouchback. Hereinafter cited as "Edmund Crouchback".
John de Brus1
M, #122474, d. 1275
Parents
| Relationships | 1st cousin 25 times removed of David Arthur Walker |
| Last Edited |
1 December 2025 18:13:57 |
| Death | John de Brus died in 1275.1 |
Citations
- [S20261] "Robert de Brus, 5th Lord of Annandale", Wikipedia https://en.wikipedia.org/wiki/Robert_de_Brus,_5th_Lord_of_Annandale. Hereinafter cited as "Robert de Brus, 5th Lord of Annandale".
John Plantagenet, of Cornwall1
M, #122487, b. 31 January 1232, d. 22 September 1233
Parents
| Relationships | 1st cousin 24 times removed of David Arthur Walker |
| Last Edited |
2 December 2025 17:42:03 |
| Birth | John Plantagenet, of Cornwall, was born on 31 January 1232, in Marlow, Buckinghamshire, EnglandG.1 |
| Death | He died on 22 September 1233 in Marlow, Buckinghamshire, EnglandG.1 |
| Burial | He was buried in Reading Abbey, Berkshire, EnglandG.1 |
Citations
- [S20258] "Isabel Marshal", Wikipedia https://en.wikipedia.org/wiki/Isabel_Marshal. Hereinafter cited as "Isabel Marshal".
Isabella Plantagenet, of Cornwall1
F, #122488, b. 9 September 1233, d. 10 October 1234
Parents
| Relationships | 1st cousin 24 times removed of David Arthur Walker |
| Last Edited |
2 December 2025 17:47:03 |
| Birth | Isabella Plantagenet, of Cornwall, was born on 9 September 1233, in Marlow, Buckinghamshire, EnglandG.1 |
| Death | She died on 10 October 1234 in Marlow, Buckinghamshire, EnglandG.1 |
| Burial | She was buried in Reading Abbey, Berkshire, EnglandG.1 |
Citations
- [S20258] "Isabel Marshal", Wikipedia https://en.wikipedia.org/wiki/Isabel_Marshal. Hereinafter cited as "Isabel Marshal".
Henry Plantagenet, of Almain1
M, #122489, b. 2 November 1235, d. 13 March 1271
Parents
| Relationships | 1st cousin 24 times removed of David Arthur Walker |
| Last Edited |
2 December 2025 17:48:51 |
| Birth | Henry Plantagenet, of Almain, was born on 2 November 1235.1 |
| Death | He died on 13 March 1271. He was murdered by his cousins Guy and Simon de Montfort.1 |
| Burial | He was buried in Hailes Abbey, Gloucestershire, EnglandG.1 |
Citations
- [S20258] "Isabel Marshal", Wikipedia https://en.wikipedia.org/wiki/Isabel_Marshal. Hereinafter cited as "Isabel Marshal".
Nicholas Plantagenet, of Cornwall1
M, #122490, b. 17 January 1240, d. 17 January 1240
Parents
| Relationships | 1st cousin 24 times removed of David Arthur Walker |
| Last Edited |
2 December 2025 18:00:42 |
| Birth | Nicholas Plantagenet, of Cornwall, was born on 17 January 1240, in Berkhamsted Castle, Hertfordshire, EnglandG.1 |
| Death | He died on 17 January 1240 in Berkhamsted Castle, Hertfordshire, EnglandG.1 |
| Burial | He was buried in Beaulieu Abbey, Hampshire, EnglandG. He was buried with his mother, who died giving birth to him. |
Citations
- [S20258] "Isabel Marshal", Wikipedia https://en.wikipedia.org/wiki/Isabel_Marshal. Hereinafter cited as "Isabel Marshal".
Richard Plantagenet, of Cornwall1
M, #122492, b. July 1246, d. 15 August 1246
Parents
| Relationships | 1st cousin 24 times removed of David Arthur Walker |
| Last Edited |
2 December 2025 18:45:11 |
| Birth | Richard Plantagenet, of Cornwall, was born in July 1246.1 |
| Death | He died on 15 August 1246.1 |
Citations
- [S20250] "Sanchia of Provence", Wikipedia https://en.wikipedia.org/wiki/Sanchia_of_Provence. Hereinafter cited as "Sanchia of Provence".
Edmund Plantagenet, 2nd Earl of Cornwall1
M, #122493, b. 26 December 1249, d. Before 25 September 1300
Parents
| Relationships | 1st cousin 24 times removed of David Arthur Walker |
| Last Edited |
1 January 2026 10:41:25 |
| Birth | Edmund Plantagenet, 2nd Earl of Cornwall, was born on 26 December 1249, in Berkhamsted Castle, Hertfordshire, EnglandG.1,2 |
| Marriage | He married Margaret de Clare. daughter of Richard de Clare, 5th Earl of Hertford, 6th Earl of Gloucester, Lord of Glamorgan, 8th Lord of Clare and 5th Earl of Hertford, and Maud de Lacy, on 6 October 1272, in the chapel in Ruislip, West London, EnglandG. No issue. No issue.1,2 |
| Knighted | Edmund Plantagenet, 2nd Earl of Cornwall, was knighted on 13 October 1272, by Henry III in Westminster Abbey, Westminster, England, 51.498910, -0.128280G. by Henry III.2 |
| Death | He died Before 25 September 1300.1,2 |
Citations
- [S20250] "Sanchia of Provence", Wikipedia https://en.wikipedia.org/wiki/Sanchia_of_Provence. Hereinafter cited as "Sanchia of Provence".
- [S20406] "Edmund, 2nd Earl of Cornwall", Wikipedia https://en.wikipedia.org/wiki/Edmund,_2nd_Earl_of_Cornwall. Hereinafter cited as "Edmund, 2nd Earl of Cornwall".
Margaret de Clare1
F, #122494, b. 1250, d. Before November 1312
Parents
| Relationships | 24th great-aunt of David Arthur Walker |
| Last Edited |
3 December 2025 11:23:18 |
| Birth | Margaret de Clare was born in 1250.2 |
| Marriage | She married Edmund Plantagenet, 2nd Earl of Cornwall. son of Richard Plantagenet, Earl of Cornwall, Count of Poitou, and Sanchia of Provence, on 6 October 1272, in the chapel in Ruislip, West London, EnglandG. No issue. No issue.1,3 |
| Death | Margaret de Clare died Before November 1312.1,2 |
Citations
- [S20250] "Sanchia of Provence", Wikipedia https://en.wikipedia.org/wiki/Sanchia_of_Provence. Hereinafter cited as "Sanchia of Provence".
- [S20251] "Richard of Cornwall", Wikipedia https://en.wikipedia.org/wiki/Richard_of_Cornwall. Hereinafter cited as "Richard of Cornwall".
- [S20406] "Edmund, 2nd Earl of Cornwall", Wikipedia https://en.wikipedia.org/wiki/Edmund,_2nd_Earl_of_Cornwall. Hereinafter cited as "Edmund, 2nd Earl of Cornwall".
Margaret de Burgh1
F, #122497, d. November 1237
| Last Edited |
4 December 2025 18:26:11 |
| Marriage | Margaret de Burgh married Richard de Clare, 5th Earl of Hertford, 6th Earl of Gloucester, Lord of Glamorgan, 8th Lord of Clare and 5th Earl of Hertford. son of Gilbert de Clare, 7th Earl of Clare, 4th Earl of Hertford, 5th Earl of Gloucester, 1st Lord of Glamorgan, and Lady Isabel Marshal, They had no children. They had no children.1 |
| Death | Margaret de Burgh died in November 1237.1 |
Citations
- [S20265] "Richard de Clare, 6th Earl of Gloucester", Wikipedia https://en.wikipedia.org/wiki/Richard_de_Clare,_6th_Earl_of_Gloucester. Hereinafter cited as "Richard de Clare, 6th Earl of Gloucester".
Maud de Lacy1
F, #122498, b. 25 January 1223, d. 10 March 1288/89
Parents
| Birth | Maud de Lacy was born on 25 January 1223, in Lincoln, Lincolnshire, EnglandG.2 |
| Marriage | She married Richard de Clare, 5th Earl of Hertford, 6th Earl of Gloucester, Lord of Glamorgan, 8th Lord of Clare and 5th Earl of Hertford, son of Gilbert de Clare, 7th Earl of Clare, 4th Earl of Hertford, 5th Earl of Gloucester, 1st Lord of Glamorgan, and Lady Isabel Marshal, on 2 February 1238.1 |
| Death | Maud de Lacy died on 10 March 1288/89.2 |
| Daughter | Isabel de Clare b. 1240, d. Before 1271 |
| Son | Gilbert de Clare, Knt., Earl of Gloucester and 6th Earl of Hertford+ b. 2 September 1243, d. 7 December 1295 |
| Son | Thomas de Clare, Lord of Thomond+ b. 1245, d. 29 August 1287 |
| Son | Bovo de Clare, Chancellor of Llandaff b. 21 July 1248, d. 1294 |
| Daughter | Margaret de Clare b. 1250, d. Before November 1312 |
| Daughter | Rohese de Clare+ b. 17 October 1252, d. After 1316 |
| Daughter | Eglantine de Clare b. 1257, d. 1257 |
Citations
- [S20265] "Richard de Clare, 6th Earl of Gloucester", Wikipedia https://en.wikipedia.org/wiki/Richard_de_Clare,_6th_Earl_of_Gloucester. Hereinafter cited as "Richard de Clare, 6th Earl of Gloucester".
- [S20266] "Maud de Lacy, Countess of Gloucester", Wikipedia https://en.wikipedia.org/wiki/Maud_de_Lacy,_Countess_of_Gloucester. Hereinafter cited as "Maud de Lacy, Countess of Gloucester".
John de Lacy, 1st Earl of Lincoln1
M, #122499
| Daughter | Maud de Lacy+ b. 25 January 1223, d. 10 March 1288/89 |
Citations
- [S20265] "Richard de Clare, 6th Earl of Gloucester", Wikipedia https://en.wikipedia.org/wiki/Richard_de_Clare,_6th_Earl_of_Gloucester. Hereinafter cited as "Richard de Clare, 6th Earl of Gloucester".
- [S20266] "Maud de Lacy, Countess of Gloucester", Wikipedia https://en.wikipedia.org/wiki/Maud_de_Lacy,_Countess_of_Gloucester. Hereinafter cited as "Maud de Lacy, Countess of Gloucester".