Abstract
The study follows the lives of the illegitimate children of the Austrian Archduke Otto (1865-1906), the father of the last Austrian-Hungarian King Charles I. (IV.), that were ennobled as "von Hortenau".
The study follows the lives of the illegitimate children of the Austrian Archduke Otto (1865-1906), the father of the last Austrian-Hungarian King Charles I. (IV.), that were ennobled as "von Hortenau".