Georgius
Acropolites

University of Constantinople


Georgius
Pachymeres

Constantinople (History of History Tree)


Shams al-Din
al-Bukhari

Observatory of Maragha (MathTree)


Gregor
Chioniades

Tabriz (MathTree)


Manuel
Bryennius

Constantinople (MathTree)



Nicephorus
Gregoras

Constantinople
(Options)

Gregory
Palamas

Mount Athos Monastery

Nilus
Cabasilas

Constantinople (Theology Tree)

Nicephorus GregorasX