The exact date of her death is not known; however, she likely died shortly before her father, Richard Welles, 7th Baron Welles, and brother, Robert Willoughby, 8th Baron Willoughby de Eresby, were attainted, five years after their executions, by the Parliament of January–March 1475.
The exact date of her demise is unknown; however, she likely passed away shortly before her father, Richard Welles, 7th Baron Welles, and brother, Robert Willoughby, 8th Baron Willoughby de Eresby, were executed by Parliament five years after their executions in January–March 1475.