That profile could use a bio - if you know the manors, I just look it up in British History Online.
For example: Parishes: Bessels Leigh
"By the marriage of Katharine, daughter and heir of this John de Leigh, with Thomas Bessels the manor passed into the Bessels family. ... They had at that date a son John, who was his father's heir at the latter's death in or about 1378. He predeceased his mother, however, as did his son John, who died a minor, so that at Katharine's death in 1405 her heir was her second son Peter. Probably the manor of Leigh had already been granted to Peter, for it does not appear among her estates. It was conveyed to him and to various other persons for his use in 1412. He was then a knight. Sir Peter was noted for his deeds of charity and his gifts to religious houses, and by his will he directed that all his manors should be sold by his co-feoffees in alms for his soul. He died childless in 1424, and Robert Cramford, a distant cousin on his mother's side, was returned as his heir". So no son Thomas, matches your story.
A bunch of strange things happened for the next 50 years but by 1487 William, the son and heir of someone named Thomas Bessels who was related to Sir Peter but wasn't his son had possession of the manor, along with Grafton and Radcot in Oxfordshire.
Langford Parish: Grafton
"John was succeeded by Sir Thomas's younger son Peter de Besyles (d. 1425), whose widow Margery (d. 1484) held the manor with her second husband William Warbelton (d. 1469) of Sherfield (Hants). Margery was succeeded, in contravention of Peter de Besyles's will, by her grandson William de Besyles (d. 1515), son of her and Peter's illegitimate son Thomas. "
You can cite both manors, mark Thomas as uncertain, and remove Margery as his mother. Hope that helps!