What about this?

Christian

England
Scotland
Denmark
Leon & Castille
France
Venice
HRE
Poland
Hungary
Sicily
Aragon
Lithuania
Kievan Rus
Bohemia
Teutonic Order
Papal Order
Burgundy
Portugal
Genoa
Milan

Muslem

The Moors
Egypt
Seljuk Turks
Georgia
Ottomans
Iberian Moors
Kingdom of Jerusalem
Berbers
Armenia
Persia
(abbasids??)
Swiss Conf.

Orthodox

Costal Empire of Cilicia
Bulgaria
Serbia
Croatia
Novgorod
Byzantine
Norway
Welsh
Sweden
Latin Empire

Pagan

Kipchaks
Mongols
Mughal Empire (rather than Timurids)
Livonian Order
Irish