Isolde de Mortimer
Facts and Events
- ↑ 1.0 1.1 Isolt de Mortimer, in Lundy, Darryl. The Peerage: A genealogical survey of the peerage of Britain as well as the royal families of Europe.
- ↑ Cokayne, George Edward, and Vicary Gibbs; et al. The complete peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, extant, extinct, or dormant [2nd ed.]. (London: St. Catherine Press, 1910-59), IX 708-14, IX 502, X 464.
- ↑ 3.0 3.1 ISOLT de Mortimer (before 1273-after 1336)., in Cawley, Charles. Medieval Lands: A prosopography of medieval European noble and royal families.