Heiress-Heraldic?
As a widow she was the first wife of John Tyrringham whose second wife was Elizabeth Gatesby. These families had connections with the Gunpowder Plot.
reference: Berry's Directory held at Buckinghamshire Records Office at Aylesbury
page 21-
Great grandmother of Sir Anthony Tyrringham with his wife Elizabeth daughter of Sir Robert Throckmorton,who was grandfather of Robert Gatesby
Reading; Antonia Fraser,s The Gunpowder Plot isbn o-297-81348-x
Berry,s also shows the connection between Lawrance Cheney (his father Sir William Cheney)whose daughter Elizabeth married firstly Frederick Tylney whose daughter married Thomas Duke of Norfolk whose grand-daughter was Anne Bulleyne
N.B. Thomas Cheney d.1446 had set a family precedent by being incarcerated in theTower of London for supporting the Lollards unlike the Amersham Martyrs who were burnt at the stake he bought his way out of captivity.