John III Doukas Vatatzes

People

• Baldwin II of Constantinople
• Frederick II
• Isaac II Angelos
• Ivan Asen I of Bulgaria
• Ivan Asen II

Groups

• Vlachs
• Oghuz Turks
• Greeks, Medieval (Byzantines)
• Bulgarians (South Slavs)
• Papal States (Republic of St. Peter)

Topics

• Byzantine-Bulgarian Wars
• East–West Schism
• Crusades, The
• Arcadiopolis, Battle of
• Latin Empire-Byzantine Empire War, First

Subjects

• Technology
• Watercraft
• Religion
• Law
• Trade

Commodities

• Weapons
• Domestic animals
• Grains and produce

Locations

• Sofia > Sofija > Serdica Grad Sofiya Bulgaria
• Nicomedia > Izmit (Kocaeli) Kocaeli Turkey
• Adrianople Edirne Turkey
• Thessalonica > Thessaloníki (Salonika) Thessaloniki Greece
• Klokotnica Bulgaria