Name Suffix:<NSFX> 8th Lord D'eyncourt
He signed, 12 February, 1301, 29th Edward I, the celebrated letter sent by the barons, assembled in parliament at Lincoln, to Pope Boniface VIII, denying his jurisdiction in temporal affairs, and denying that Scotland was a fief of the Roman see. The duplicate of this letter exists amongst the pubic archives, and the seal of "Edmundus de Eyncourt" thereto appended, is in good preservation and was engraved in 1729, in the 1st vol. of the "Vetusta Monumenta." Baron Edmund was also present, 33rd Edward I [1305], when the king refused permission to the bishop of Durham to present a foreign bishop, on the Pope's recommendation, to the priory of Coldingham. He had two sons, John and William, who were with the feudal army at Carlisle, 29th Edward I [1301], in the place of their father, and figure in the roll of Caerlaverock where John, it is said, 'mult bien fist son devoir." He d. v.p., and subsequently, William, a commander of distinguished valour, was killed 23 June, 1314, 7th Edward II, before the Castle of Stirling, on the eve of the battle of Bannockburn.
Baron Edmund's eldest son, John, left three sons, Edmund, who also d. in the baron's lifetime; William (afterwards 9th baron), and John. Edmund, the grandson, left a dau., Isabel, and the object of the above-mentioned license was to vest the estates in her uncle, William, next brother of her father, Edmund, in order to prevent the barony descending to her and thus passing, in case of her marriage, to another name and family. The youngest brother, John, represented Lincolnshire in parliament, 11th Edward III [1338], and Nottinghamshire, 14th Edward III. Baron Edmund d. 20th Edward II [1327] at a very advanced age. He had immense possessions with great weight and authority; he was prominent in the chief events of his time and attended his sovereigns on all important occasions of war or council. On his decease, his son John, and his grandson Edmund, being dead, and the great-granddau. Isabel being also dead, without issue, William, 9th Lord d'Eyncourt, s. his grandfather, when twenty-six years of age, as heir by descent as well as by virtue of the licensed entail. [Sir Bernard Burke, Dormant, Abeyant, Forfeited and Extinct Peerages, Burke's Peerage, Ltd., London, England, 1883, p. 170, d'Eyncourt, Barons d'Eyncourt]