Linked from
The 8 pages that link to Ottokar II of Bohemia, each with the reason it gives.
Prussian CrusadeRelated: His participation lent royal force to the conquest of Sambian Prussia.
Duchy of AustriaRelated: His control of Austria preceded the Habsburg acquisition.
Battle on the MarchfeldRelated: His defeat and death ended his challenge to Rudolf’s authority.
History of ViennaRelated: His defeat in 1278 cleared the way for Habsburg rule over Vienna.