- Born: Abt 1425, Middleton, Lancastershire, England 861
- Marriage: Sir Ralph Assheton Knight & Sheriff of Yorkshire about 1439 in Middleton, Lancastershire, England 535,861,862
Noted events in her life were:
• Background Information. 862
Roger de Middleton died before 16 Edward II (1322), leaving his wife Agnes and six daughter, his coheiresses. Of his daughters, Matilda, or Maud, was the eldest and the wife of John Barton of Fryton in Rydale, in North Riding, Yorkshire. Their son was Ralph, who died seized of the manor of Middleton in 1406. Ralph's son and successor, William Barton of Middleton married Isabella, the daughter of William de Radclyffe. Willaim Radclyffe was alive in 6 Henry V, and his daughter and William Barton married sometime after 44 Edward III. William and Isabella had a son and heir named Richard Barton who was alive 6 Sep 9 Henry V. Richard had two sons. One was Richard, who married Alicia, daughter of Sir John Byron of Clayton, who was alive 5 Edward IV. The other son, John Barton, married Margaret, daughter of Sir Nicholas Byron, Knight. Margery, the only daughter of John and heiress of Richard Barton, married sometime after 15 April 17 Henry VI, to Sir Ralph Assheton. Sir John Assheton was the son of Sir John Assheton of Assheton by his second wife, Margaret, daughter of Sir John Byron of Clayton, Knight.
~Examynatyons Towcheynge Cokeye More, p. 27
Margaret married Sir Ralph Assheton Knight & Sheriff of Yorkshire, son of Sir John Assheton Knight and Margaret Byron, about 1439 in Middleton, Lancastershire, England 535,861.,862 (Sir Ralph Assheton Knight & Sheriff of Yorkshire died on 10 Apr 1484 in Ashton-under-Lyne, Lancashire, England 861.)