List of Byzantine treaties

This is a list of the treaties and agreements signed during the history of the Eastern Roman or Byzantine Empire. The definition of a treaty is any agreement between the Byzantine Empire and any foreign power, including peace agreements, trade agreements, and understandings between the two powers. For external conflicts see Byzantine wars.

Valentinian–Theodosian dynasty (364–457)

 * Peace of Acilisene (c. 387) – Peace treaty between Sassanid Empire and Eastern Roman Empire, dividing Greater Armenia in half.

Justinian dynasty (518–602)

 * Eternal Peace (532), between the Byzantines and Sassanid Persia
 * Fifty-Year Peace Treaty (562) – between Byzantines and Sassanid Persia

Non-dynastic (711–717)

 * Byzantine–Bulgarian Treaty of 716 – Officially ends the Battle of Anchialus and establishes the borders between Byzantium and the Bulgarian Empire.

Nikephoros' dynasty (802–813)

 * Pax Nicephori (803) peace treaty between Charlemagne and Nicephorus I

Non-dynastic (813–820)

 * Byzantine–Bulgarian Treaty of 815 with the Bulgarian Empire.

Macedonian dynasty (867–1056)

 * Rus'–Byzantine Treaty (907)
 * Rus'–Byzantine Treaty (911)
 * Rus'–Byzantine Treaty (945)
 * Treaty of Safar (970)
 * Byzantine–Georgian treaty of 1022
 * Byzantine–Georgian treaty of 1031

Komnenid dynasty (1081–1185)

 * Byzantine–Venetian Treaty of 1082
 * Treaty of Devol (1108) with Bohemond I of Antioch

Laskarid dynasty (Empire of Nicaea, 1204–1261)

 * Treaty of Nymphaeum (1214)
 * Nicaean–Venetian Treaty of 1219
 * Nicaean–Latin Armistice of 1260
 * Treaty of Nymphaeum (1261)

Palaiologan dynasty (1261–1453)

 * Byzantine–Venetian treaty of 1268
 * Byzantine–Venetian treaty of 1277
 * Byzantine–Trapezuntine treaty of 1282
 * Byzantine–Venetian treaty of 1285
 * Byzantine–Venetian treaty of 1302
 * Byzantine–Venetian treaty of 1310
 * Byzantine–Venetian treaty of 1324
 * Treaty of Chernomen (1327)
 * Byzantine–Venetian treaty of 1332
 * Byzantine–Aydinid alliance (1335)
 * Byzantine–Venetian treaty of 1342
 * Byzantine–Venetian treaty of 1357
 * Byzantine–Venetian treaty of 1363
 * Byzantine–Venetian treaty of 1370
 * Byzantine–Venetian treaty of 1376
 * Byzantine–Venetian treaty of 1390
 * Treaty of Gallipoli (1403) – agreement that released the Byzantine Empire of vassalage to the Ottoman Empire and extensive territorial additions.
 * Byzantine–Venetian treaty of 1406
 * Byzantine–Venetian treaty of 1412
 * Byzantine–Venetian treaty of 1418
 * Byzantine–Venetian treaty of 1423
 * Byzantine–Venetian treaty of 1431
 * Byzantine–Venetian treaty of 1436
 * Byzantine–Venetian treaty of 1442
 * Byzantine–Venetian treaty of 1448