The foundation and development of the Venetian Quarter in Constantinople, and the history of the early trading relations between Venice and the Roman Empire are intimately connected with and illustrate the movement by which the Republic gradually passed from actual, through merely nominal, vassalage to actual and formal independence. That movement constitutes an essential part of early Venetian history, the growth of the Republic as a free State between the Empire of the East and the Empire of the West, both weak at sea and in need of a fleet which Venice alone was able to supply, and shows us the Republic skilfully steering her course between Saracens, Normans, Greeks and Germans towards her goal, naval supremacy in the Adriatic and the Levant.
It is not the object of this paper to dwell on the larger movement, but rather to examine the relations between Venice and the Eastern Empire with special reference to the Venetian Quarter in Constantinople. Those relations were governed by the Chrysobulls, or Golden Bulls, whereby the Emperors made gradually extending concessions to the seamen and merchants of their vassal State.