FONTAINE, Petrus Franciscus Maria. The Light and the Dark: Imperialism in medieval history II : dualism in German history I. [s.l.]: J.C. Gieben, 2002. Dostupné online. ISBN978-90-76953-16-8. S. 16. (anglicky)
PRIEUR, Jean; VULLIEZ, Hyacinthe. Saints et saintes de Savoie. [s.l.]: La Fontaine de Siloë, 1999. 191 s. Dostupné online. ISBN978-2-84206-465-5. (anglicky)
lsu.edu
digitalcommons.lsu.edu
CRAFT, Brandon Taylor. Queenship, intrigue and blood-feud: decipheringthe causes of the Merovingian civil wars, 561-613. digitalcommons.lsu.edu [online]. Louisiana State University and Agricultural and Mechanical College [cit. 2021-05-29]. Dostupné online. (anglicky)