Misc. Notes
IGI John Beaufort Earl of Somerset Father: John OR of Gaunt Prince of England Mother: Catherine Roet Duchess of Lancaster
4286Pg 9 His (John Plantagenet) widow who was b: bef 1356 and who for some 25 years or upwards bef their marriage (in the lifetime apparently of each of their respective Consorts) had fulfilled the post of Mistress to the Duke himself and of Governess to his children
17383Pg 14 Katherine De Roet had formerly been the governess to (John of Lancaster) daughters, and then his mistress, and by her he had children, born before marriage, with eldest son, John, born before the death of her husband, Hugh Swynford. The marr: was ratified and confirmed during the Great Schism by the Roman pope Boniface IX. Their 3 sons were legitimised, with the assent of Parliament, on 9 Feb 1396/7, the patent confirmed by King Henry IV on 10 Feb 1406/7, but with a saving clause barring them from succession to the throne. Their children were given the name Beaufort from their father's (lost) castle in Champagne which had devolved on him through his first wife, Blanche of Lancaster, a descendant of Blanche d'Artois who had purchased the lordship of Beaufort in 1270.
17384Pg108 Line161, 17. John, Marr3: 13 Jan 1396/7 Katharine, formerly his mistress
17385Pg 185 Chap 2, Katherine Roet, who had been the governess of John’s (John of Gaunt) older daughters, was already the mother of four of his children, who were given the surname Beaufort after his (lost) lands in Champaign, and were declared legitimate by the Pope and by Parliament 1397.
17386Vol 19 Image258of1413 Pg 243
17387 Catherine Swynford, Duchess of Lancaster. Her elder sister, Philippa, is somewhat doubtfully said to have been the wife of Geoffrey Chaucer, the poet and by him mother of Thomas Chaucer.
Vol 19 Image259of1413 Pg 244 Catherine Swynford was mistress to John of Gaunt’s daughters, Philippa and Elizabeth. She was one of the ladies who escorted Isabella of France to Calais in Oct 1396. In the following year (1397) her issue by the duke (John of Gaunt) were declared legitimate in parliament. (Rot. Parl. iii 343). Her children took the name Beaufort from the castle of that name in Anjou where they were born.
Pg 489 Catherine (Roelt) Swynford, sister of Chaucer’s wife
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