The Partitio terrarum imperii Romaniae (a treaty that partitioned the Byzantine Empire) was signed on 1 October 1204. On the strength of this treaty, 5/8 of Constantinople were ceded to the Latin emperor, whereas the remaining 3/8 devolved to the control of Venice.
Venezia, Biblioteca Nazionale Marciana, Cod. Marc. Lat. X, 228 (=3312), fol. 3r-4v.
Maltezou, Ch., Opseis tis Istorias tou Venetokratoumenou Ellinismou. Archeiaka tekmiria, Foundation for Hellenic Culture, Athens 1993, p. 143, no. 1.
© Biblioteca Nazionale Marciana, Venezia