John V eventually claimed victory in the civil war, but the cost was significant debt, mainly to the Venetians. In the summer of 1369, John V sailed to Venice and apparently offered the island of Tenedos in exchange for twenty-five thousand ducats and his own crown jewels. However, his son (Andronikos IV Palaiologos), acting as the regent in Constantinople, rejected the deal possibly because of Genoese pressure. Andronikos tried but failed to depose his father. In 1376, John V sold the island to Venice on the same terms as before. This upset the Genoese of Galata. The Genoese helped the imprisoned Andronikos to escape and depose his father. Andronikos repaid the favor ceding them Tenedos. But the garrison on the island refused the agreement and gave control over to the Venetians.