What is Henry IV Probus?
'''Henry IV Probus''' ([[Latin]] for ''the Righteous'') ({{lang-pl|'''Henryk IV Probus''' or '''Prawy'''}}; {{lang-de|'''Heinrich IV der Gerechte'''}}) (c. 1258&nbsp;– 23 June 1290) was a Duke of the [[Silesia]]n territory of [[Wrocław]] ([[Lower Silesia]]) starting in 1266, and starting in 1288 High Duke of the [[Seniorate Province|Seniorate Province of Kraków]] until his death in 1290. He was the only son of [[Henry III the White]], Duke of Wrocław, by his first wife Judith, daughter of Duke [[Konrad I of Masovia]]. {{bio-stub}} [[Category:1250s births]] [[Category:1290 deaths]] [[Category:Polish dukes]] [[Category:Piast dynasty]]