↑ Cawley, Charles. Medieval Lands: A prosopography of medieval European noble and royal families. Hosted online by the Foundation for Medieval Genealogy (FMG), accessed 2022, Kings of Asturias.
↑Rodrigo de Toledo De Rebus Hispaniæ IV, 7, quoted in Barrau-Dihigo (1989), p. 248 footnote 19.
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