"Frederick IV of Meissen" . "Frederick I \u2018the Belligerent\u2019 of Saxony" . "Frederick I" . "1370" . . "Frederick I ''the Warlike''" . . . . . "Frederick I of Saxony" . . . . "Friedrich der Streitbare" . "Frederick, then margrave of Meissen" . . . . . . "Elector Frederick I of Saxony" . "Frederick IV/I" . . . "Frederick I the Warlike" . . . . . . "Fridericum" . . "Frederick I \\\"the Warlike\\\" of Saxony" . "Frederick I, Elector of Saxony" . "Frederick IV" . . . . . . "1423" . "Frederick of Saxony" . . . "1428" . "Frederick of Meissen" . . . . . "Frederick I, the Belligerent" . . . . . "Frederick of Thuringia" . . "Frederick I
of Saxony" . . . . . "Frederick the Belligerent" . . . . . . . "Frederick the Warlike" . "Frederick IV \\\"the Warlike\\\" of Meissen" . . . . "Frederick I, Elector of Saxony" . . .