Kingdom of Thessalonica
Several areas are left out of the "Partitio". In Europe, the lands of Macedonia and Western Thrace, between the Maritsa and Vardar rivers, as well as the northeastern Peloponnese, Boeotia, and central Euboea, are absent. These were lands assigned to Boniface of Montferrat, and thus evidently excluded from the general partition. This fact also helps to assign the "terminus post quem" for the treaty, namely the agreement of 16 May 1204 between Boniface and Baldwin of Flanders that established the Kingdom of Thessalonica.