Constance of Sicily was Holy Roman Empress through marriage to Henry VI, Holy Roman Emperor.
--- Matilda, Abbess of Quedlinburg
--- Empress Matilda
Cultural depictions of Empress Matilda
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--- Barbara of Cilli
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--- Maria Theresa
Cultural depiction
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Historiography
edit- Alio, Jacqueline (11 June 2019). Queens of Sicily, 1061-1266: The Queens Consort, Regent and Regnant of the Norman-Swabian Era of the Kingdom of Sicily (in Latin). Trinacria Editions. ISBN 978-1-943639-14-4.
- Giurleo, Francesca (2018). Costanza D'Altavilla: l'ultima regina normanna (in Italian). Kalós edizioni. ISBN 978-88-98777-61-7.
- Hamel, Pasquale (29 November 2018). Costanza d'Altavilla: Biografia eretica di un'imperatrice (in Italian). Rubbettino Editore. p. 8. ISBN 978-88-498-5734-4.[1]
- Kölzer, Theo (1983). Urkunden und Kanzlei der Kaiserin Konstanze, Königin von Sizilien (1195-1198) (in German). Böhlau. ISBN 978-3-412-03482-5. Retrieved 8 December 2022.[2]
- Tobias Weller : Konstanze von Sizilien. In: Die Kaiserinnen des Mittelalters, hrsg. von Amalie Fößel, Pustet Verlag, Regensburg 2011, S. 213–231.
- Gerhard Baaken (1980), "Konstanze", Neue Deutsche Biographie (in German), vol. 12, Berlin: Duncker & Humblot, pp. 560–561; (full text online)