Siegmund dari Austria: Perbedaan antara revisi

* {{cite book |last=Baillie-Grohman |first=William Adolph |title=The Land in the Mountains |year=1907 |publisher=J. B. Lippincott Company |location=Philadelphia |pages=93–96}}

* {{cite book |last=Coxe |first=William |title=History of the House of Austria |year=1847 |edition=Third Edition |publisher=Henry G. Bohn, York Street, Covent Garden |location=London }}

* {{cite book |last=Van Dyke, Paul |first=Paul |title=Renascence Portraits |year=1905 |publisher=Charles Scribner's Sons |location=New York }}