page_title: List of rulers of Austria
section_title: Interregnum
hierarchical_section_title: List of rulers of Austria / Dukes of Austria / Interregnum
caption_attribution_description: Otakar II. Přemysl
context_page_description: Austria was ruled by the House of Babenberg until 1246 and by the House of Habsburg from 1282 to 1918.
context_section_description: After Frederick's death, the succession of the Duchy was disputed between various claimants, based in two main rival heiresses:
  Through Margaret of Austria, sister of Frederick II:
  Henry and Frederick of Hohenstaufen, sons, claimants 1246/50 - c.1252?
  Ottokar II of Bohemia, second husband, claimant 1251–1278
  Through Gertrude of Austria, niece of Frederick II:
  Vladislas, Margrave of Moravia, first husband, claimant 1246–1247
  Herman of Baden, second husband, claimant 1248–1250
  Roman Danylovich, third husband, claimant 1252-1253
  Frederick I, Margrave of Baden, son, claimant c.1253–1268
caption: Ottokar of Bohemia
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