Austria | Austria-Hungary | Upper Austria | Lower Austria | Frederick the Great | Frederick | Frederick II | Franz Joseph I of Austria | Frederick II, Holy Roman Emperor | Frederick Russell Burnham | Frederick Roberts, 1st Earl Roberts | Frederick Law Olmsted | FK Austria Wien | Austria national football team | Frederick I, Holy Roman Emperor | Frederick Forsyth | Frederick Douglass | Archduke Franz Ferdinand of Austria | Frederick, Maryland | Prince Frederick, Duke of York and Albany | Frederick III | Frederick I | Frederick Delius | Frederick William III of Prussia | Anne of Austria | John Frederick II, Duke of Saxony | Frederick III, German Emperor | Maria Theresa of Austria | Frederick William IV of Prussia | Frederick Schomberg, 1st Duke of Schomberg |
On 11 May 1315, Isabella married Frederick I of Austria, King of Germany in Ravensburg.
Frederick the Fair (1289–1330), or Frederick I of Austria and Frederick III of Germany