John de Burgh, Knight 1229, b. 1210, d. 1275 (son of Hubert de Burgh, Earl of Kent, by Beatrice, daughter of William de Warenne of Wormgay) and Hawise de Lanvallei, d. 1249, [daughter of] William de Lanvallei, d. 1217, Magna Charta Surety 1215, of Great Bromley, Essex. [Ancestral Roots]
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Sir John de Burgh m. Hawyse, dau. and heiress of William de Lanvalay, and left issue a son, John. This Sir John de Burgh never inherited the Earldom of Kent. He fought under the banner of the barons at the battles of Lewes and Evesham, in the reign of Henry III. The period of his decease is not ascertained. His son and heir, John, d. in the 8th Edward I [1280], leaving the extensive manors and estates which he inherited from this father and mother to three daus., as co-heirs, viz., (1) Hawyse, m. to Robert de Greilly; (2) Devorgila, m. to Robert Fitz-Walter; (3) Marguerite, a nun at Chiksand, co. Bedford. [Sir Bernard Burke, Dormant and Extinct Peerages, Burke's Peerage, Ltd., London, 1883, p. 90, Burgh, Earl of Kent]