The Sea of Dorne becomes a strategic route in Prince Morion Martell’s failed attempt to carry war from Dorne to the Stormlands. Rather than invade through the Prince’s Pass, Morion planned to cross the sea by ship and take the coast by surprise; the fleet’s destruction turned that intended passage into the setting for the Fourth Dornish War’s decisive defeat.

Setting and Strategic Role

Morion planned to gather his forces at Ghost Hill and the Tor, then transport them across the Sea of Dorne toward the Stormlands. The route offered an alternative to the Prince’s Pass, but it could not conceal his preparations: the king learned of the plan well before the fleet sailed. The sea thus figures not as an unobserved avenue of attack, but as the exposed crossing on which Morion’s campaign depended.

Morion’s Naval Preparations

Dorne had not possessed significant naval strength since Nymeria burned her ships, so Morion assembled a fleet with the help of pirates from the Stepstones, sellsails from Myr, and corsairs from the Pepper Coast. The ships arrived over the course of nearly a year, carrying Morion and his spearmen. Remembering that Meraxes had been brought down at the Hellholt, Morion equipped every vessel with crossbowmen and massive scorpions, intending to meet any Targaryen dragons with a barrage of bolts.

The Fleet’s Destruction

Jaehaerys Targaryen and his sons Aemon and Baelon waited for Morion’s fleet. As it crossed the Sea of Dorne, Vermithor, Caraxes, and Vhagar attacked from the clouds. The Dornish fired their scorpions; some bolts struck dragon scales and one pierced Vhagar’s wing, but the weapons did not bring a dragon down. The ships burned, and not a single living Dornishman landed in the Stormlands. Boremund Baratheon, who had been waiting at Cape Wrath to oppose the landing, never had to meet the invaders ashore. The Fourth Dornish War was decided in a day, and the sea crossing that was meant to deliver Morion’s invasion instead ended it.