Editing Henry Probus (section)

===Ottokar II's death and Regency of Bohemia===
While Henry himself did not take part in the Battle on the Marchfeld, he had sent reinforcements to King Ottokar II, whose death was a serious blow to the Wrocław duke. After hearing the news of Ottokar's death, Henry IV went to [[Prague]] and attempted to gain the guardianship of the king's son [[Wenceslaus II of Bohemia|Wenceslaus II]], as one of his closest relatives (Henry IV's paternal grandmother was [[Anne of Bohemia (1204–1265)|Anna of Bohemia]], a daughter of late King [[Ottokar I of Bohemia|Ottokar I]]) and ally.

He was however not successful due to the actions of King Rudolph I of Germany, who in his capacity as [[King of the Romans]] had given the regency over Bohemia to the [[Ascanians|Ascanian]] margrave [[Otto V, Margrave of Brandenburg-Salzwedel]]. As compensation, the German king gave Henry IV the Bohemian [[County of Kladsko]] as a fief.