Question: Who is Joan Welles, 9Th Baroness Willoughby De Eresby's mother?
Sentence (from "Joan Welles, 9th Baroness Willoughby de Eresby"): Joan Welles, "de jure suo jure" 9th Baroness Willoughby de Eresby (d. before 23 January 1475), inherited the baronies of Welles and Willoughby at the death of her brother, Robert Welles, 8th Baron Willoughby de Eresby, in 1470.
Relevant evidence: Yes