The following lists the people directly involved in the Magna Charta. The lists are from the book "Magna Charta Sureties, 1215". I am not completely sure of the identity of some of the people. When a person is listed who is in my database there is a link to that person's entry in my index. Later I will be adding a section showing immigrant ancestors who are their descendants.
The Magna Charta was signed by King John, 1215 John Lackland (1167-1216) great(22) grand father The Twenty-Five Sureties of the Magna Charta, 1215 1. Richard de Clare, Earl of Clare Richard de CLARE (1153-1217) great(23) grand father 2. William de Fortibus, Earl of Aumale (1) ? William Vivonia de FORTIBUS (-1259) great(20) grand father 3. Geoffrey de Mandeville, Earl of Gloucester (2) ? Geoffrey fitz Geoffrey de MANDEVILLE (-1216) great(22) uncle through their ancestor Geoffrey FitzPiers 4th Earl of Essex (1165-1213). 4. Saher de Quincy, Earl of Winchester Saire de QUINCEY (1155-1219) great(22) grand father 5. Henry de Bohun, Earl of Hereford Henry de BOHUN (1176-1220) great(22) grand father 6. Roger Bigod, Earl of Norfolk Roger BIGOD (1150-1221) great(24) grand father 7. Robert de Vere, Earl of Oxford Robert de VERE (1164-1221) great(22) grand father 8. William Marshall, the Younger (2) ? William MARSHALL great(22) uncle through their ancestor William MARSHALL 3rd Earl of Pembroke (1146-1219). 9. Robert fitz Walter of Dunmow Robert FitzWalter (-1235) great(23) grand father 10. Gilbert de Clare Gilbert de CLARE (1180-1230) great(22) grand father 11. Eustace de Vesci (3) ? Eustace de VESCI (-1216) not directly related. 12. William de Hardell, Mayor of London (4) 13. William de Mowbray William de MOWBRAY (-1223) great(24) grand father 14. Geoffrey de Say Geoffrey de SAYE (1155-1230) great(25) grand father 15. Roger de Mumbezon (or Mont Begon) (2) 16. William de Huntingfield William de HUNTINGFIELD (1165-1220) great(26) grand father 17. Robert de Ros of Hamlake Robert de ROS (1177-1226) great(21) grand father 18. John de Lacy, Constable of Chester, Baron of Holton John de LACY (1192-1240) great(22) grand father 19. William de Albini (or Aubigny) of Belvoir William d' AUBIGNY (1161-1236) great(24) grand father 20. Richard de Percy (5) Richard de PERCY (1181-1244) great(24) uncle through their ancestor Jocelin of Louvain Baron Percy (1130-1180). 21. William Malet William II MALET (1176-1217) great(22) grand father 22. John fitz Robert John FITZROBERT (-1240) great(23) grand father 23. William de Lanvallei William de LANVALLEI (-1217) great(26) grand father 24. Hugh Bigod, later Earl of Norfolk Hugh BIGOD (1178-1224) great(23) grand father 25. Richard de Muntfichet, Baron of Stanstead (2) (alias Richard Gernon) ? Richard de MONTFITCHET not directly related. ? identification of this individual is a guess. probably not correct. (1) known issue extinct after 3rd generation (2) no known issue surviving (3) known issue extinct after 4th generation (4) nothing known of him or of his family (5) no legitimate issue. He had an illeg. son, Sir Henry de Percy, who held the market and fair and manor of Settle (Yorks), who had a son Alexander who held land in Arram, par. of Leconfield. Descendants may exist. GEC X p. 452 Persons Named in the Preamble of the Magna Charta As Advisors of King John Clerics 1. Stephen de Langton, Archbishop of Canterbury 2. Henry, Archbishop of Dublin 3. William, Bishop of London 4. Peter, Bishop of Winchester 5. Joceline, Bishop of Bath and Glastonbury 6. Hugh, Bishop of Lincoln 7. Walter, Bishop of Worcester 8. William, Bishop of Coventry 9. Benedict, Bishop of Rochester 10. Pandulph, the Pope's subdeacon and familiar (Papal Legate) 11. Almeric, Master of the Knights Templar in England Nobles 1. William Marshal, Earl of Pembroke William MARSHALL (1146-1219) great(22) grand father 2. William Longespee, Earl of Salisbury William LONGESPEE (1176-1225) great(22) grand father 3. William, Earl of Warren (and Surrey) William de WARENNE (1166-1240) great(23) grand father 4. Alan of Galloway, Constable of Scotland Alan of Galloway (-1234) great(23) grand father 5. Warin fitz Gerold (known issue extinct in 3rd generation) 6. Hibert de Burgh, Seneschal of Poiltou 7. Peter fitz Herbert ? Piers FITZHERBERT (-1235) great(21) grand father 8. Hugh de Nevil 9. Matthew fitz Herbert ? Mathew FITZHERBERT (-1231) great(22) uncle through their ancestor Herbert FITZHERBERT (-1204). 10. Thomas Basset Thomas BASSET (-1220) great(23) grand father 11. Alan Basset Alan BASSET (1155-1233) great(22) grand father 12. William d'Aubigny, Earl of Arundel William d' AUBIGNY (1165-1220) great(24) grand father 13. Robert de Roppel 14. John Marshall of Hingham 15. John fitz Hugh