The Byzantines raided and sacked the islands of Paros, Naxos, and Keos, as well as the towns of Karystos and Oreoi on Negroponte (Euboea), before sailing south to support the operations of an expeditionary force that landed at Monemvasia against the Principality of Achaea.
John III Doukas Vatatzes | Alexios I Komnenos | John Komnenos Doukas | Doukas | Michael I Komnenos Doukas | Michael II Komnenos Doukas | Alexios Strategopoulos | Alexios IV Angelos | Alexios I of Trebizond | Alexios III | Alexios Doukas Philanthropenos | Alexios Branas |
Already in 1269/1270, a Byzantine fleet under Alexios Doukas Philanthropenos had attacked and captured one of the island's major Latin strongholds, the town of Oreos.