Archduke Sigismund of Austria (Sigismund Leopold Maria Rainer Ambrosius Valentin) (Milan, 7 January 1826 – Vienna, 15 December 1891), was an Archduke of Austria.
In 1859 Sigismund came into the possession of Gmünd Castle. As a passionate botanist and dendrologist, he had an orchid and palm house as well as a spacious landscape park constructed.[3]
Sigismund contracted a viral disease then called influenza (see 1889–1890 pandemic) in Vienna on December 15th 1891, died from pneumonia unmarried and childless four days later[4] and was buried in his own mausoleum in the Gmünd cemetery.
^ ab"Genealogie des Allerhöchsten Herrscherhauses", Hof- und Staatshandbuch der Österreichisch-Ungarischen Monarchie (in German), Vienna: Druck und Verlag der K.K. Hof- und Staatsdruckerei, 1898, p. 12
^"Ritter-orden", Hof- und Staatshandbuch der Österreichisch-Ungarischen Monarchie (in German), Vienna: Druck und Verlag der K.K. Hof- und Staatsdruckerei, 1898, pp. 59, 66
Generations are numbered by male-line descent from the first archdukes. Later generations are included although Austrian titles of nobility were abolished in 1919.