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S490

(Ref: http://www.genealogics.org/getperson.php?personID=I00013535&tree=LEO)
  • Source Notes
      <b>LEO CITES:
      </b>
      Frederick II of Hohenstaufen, London, 1957 , Masson, Georgina, Reference: biography
      Europäische Stammtafeln, Band I, Frank Baron Freytag von Loringhoven, 1975, Isenburg, W. K. Prinz von, Reference: Page 5