There have been four different baronies held by the Marmion family, two feudal baronies, one purported barony created by Simon de Montfort and one barony by writ.
^Glover's Roll of the Reign of King Henry III (Marmion). See also "Textiles and texture in heraldry", Abridged from “Heraldry in practice” by T. R. Davies, Coat of Arms No.110, Summer 1979.
^Bernard Burke (1884), Burkes General Armory (hardback), London: Burkes