Margarethe Billerbeck-Christian Zubler <br/><br/>
Delta - Iota 

 -  De Gruyter  2011 
 - Corpus fontium historiae Byzantinae. Series Berolinensis .
<br/><br/><label>ISBN: </label>9783110203462 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Europe <br/> Medieval<br/>Emperors--Byzantine Empire--Biography.<br/>HISTORY