John VI Cantacuzenus Emperor of the East 1292-1383.
Iohannis Cantacuzeni "Refutationes duae Prochori Cydonii" et "Disputatio cum Paulo Patriarcha Latino epistulis septem tradita" /
nunc primum editae curantibus Edmond Voordeckers, Franz Tinnefeld 
. - Turnhout : Brepols, Leuven : University Press,  1987 
. - 281 p.  26 cm. 
 - Corpus Christianorum. Series Graeca  16 Iohannis Cantacuzeni "Opera" .
<br/><label>  ISBN: </label>2-503-40161-9 2-503-40162-7 
<br/><br/><label>Subjects--Personal Names: </label><br/>Cydones, Prochorus ca. 1330-ca. 1369 <br/>Paul of Calabria, titular patriarch of Constantinople