Sultan Süleyman concluded "true peace" with the "great emperor of the Greeks [John VII Palaiologos], my father", as well as with "the great communes of Rhodes [the Knights Hospitaller], Venice, Genoa with the isle of Chios and the Duke of Naxos and with all the lands and islands that are theirs and their possessions in the Aegean Sea and the Black Sea".[10] To the Byzantine emperor, Sultan Süleyman ceded "Thessalonica and Kalamaria with all their related territory", the coast from "Gallikos up to the river Paravardaro", as well as all the land from Panidos (on the Marmara Sea) up to Mesembria (on the Black Sea) and the region of Palateoria with all its fortresses. The Byzantines were no longer required to pay tribute, and were free to erect fortresses as they pleased.[11] The contemporary Byzantine historian Doukas gives a slightly different account, recording that Süleyman handed over "the regions of the Strymon as far as Zetounion, the Peloponnese and the lands surrounding [Constantinople] from Panidos to the Hieron Stomion [i.e., the Bosporus], and all the coastal fortresses situated along the Black Sea from the Hieron Stomion to Varna".[12] These passages have been interpreted as implying that Süleyman ceded control of all coastal territories from the Strymon river down to Zetounion (modern Lamia), i.e. the larger part of coastal Macedonia (including Chalcidice) and the coast of Thessaly down to the Maliac Gulf.