The Permanent Peace Treaty between Pentos and Tyrosh was concluded in King’s Landing through the mediation of King Jaehaerys Targaryen. It brought an end to a war that had disrupted trade across the narrow sea, but its difficult negotiations and bitter aftermath exposed the limits of peace secured by agreement alone.

Causes and Background

Pentos and Tyrosh had been at war for three years when their envoys sought a way to negotiate terms. The conflict had caused serious disruption to trade on the narrow sea. Jaehaerys had already offered to help end the hostilities, and the two cities ultimately agreed to meet in King’s Landing, where the king would mediate and guarantee the terms of any treaty they reached.

The negotiations also interrupted a royal journey. Jaehaerys had planned to travel north with Queen Alysanne Targaryen, but his council considered the peace proposal impossible to refuse. Concerned that another delay might offend Alaric Stark, Lord of Winterfell, Alysanne proposed that she continue north alone while Jaehaerys hosted the Prince of Pentos and the Archon of Tyrosh. The arrangement allowed the queen’s progress to begin on schedule, with the king intending to join her once the talks were concluded.

Negotiations and Agreement

The talks proved far more protracted than anticipated. The antagonism between the cities ran deeper than Jaehaerys had understood, and his efforts to balance their claims led both sides to accuse him of favoring their opponent. Meanwhile, disputes between their attendants spilled into King’s Landing. Fighting broke out in inns, brothels, and wine sinks; a Pentoshi guardsman was killed, and three nights later the Archon’s galley was set ablaze at its moorings. Jaehaerys’s departure north was postponed repeatedly as the negotiations dragged on.

At last, the Archon of Tyrosh, the Prince of Pentos, and Jaehaerys put their seals to a treaty of eternal peace. The accord was widely regarded as a remarkable outcome after such contentious discussions. The king’s veiled warning that Westeros itself might enter the war if the cities failed to agree helped bring them to terms, making the threat of a wider conflict part of the pressure behind the settlement.

Aftermath and Significance

The agreement did not mean that either city welcomed its terms. On returning to Tyrosh, the Archon reportedly condemned King’s Landing as unfit to be called a city. In Pentos, the magisters were so dissatisfied with the settlement that they sacrificed their prince according to the city’s custom. The episode thus records both the achievement of the treaty and the political costs that followed: agreement ended the immediate negotiations, but did not reconcile the parties to the bargain.

Only after the treaty was concluded could Jaehaerys fly north on Vermithor. He reunited with Alysanne at Winterfell after half a year apart. In the wider narrative, the treaty’s conclusion temporarily displaced the royal progress and made the king a guarantor of peace between foreign powers; its troubled reception underscores the gap between securing a formal accord and winning lasting acceptance of its terms.