Frederick of Luxembourg

965 AD

6 October 1019(1019-10-06) (aged 53–54)

Irmtrud of Wetterau

Freed, John B. (2016). Frederick Barbarossa: The Prince and the Myth. Yale University Press.

Jackman, Donald C. (2012). Studia Luxembourgensia. Editions Enplage.

Jackman, Donald C. (2012a). The Kleeberg Fragment of the Gleiberg County. Editions Enplage.

Nicholas, David M (2013). Medieval Flanders. Routledge.

Robinson, Ian, ed. (2004). The Papal Reform of the Eleventh Century: Lives of Pope Leo IX and Pope Gregory VII. Manchester University Press.