The mounted knights of Dol Amroth and Belfalas, who rode beneath the blue-and-white swan-ship banner of the Princes of Dol Amroth. These knights came from the nobility of Belfalas, and are described as tall, dark-haired and grey-eyed, being descended in large part from the ancient Númenóreans (and, it was rumoured, also carrying Elvish blood in their veins).²

During the War of the Ring, Prince Imrahil led a company of his swan-knights to the defence of Minas Tirith, accompanied by seven hundred men at arms, and they played an important part in the Battle of the Pelennor Fields. It was the swan-knights of Belfalas who led the sortie that rescued Faramir early in the engagement, and later in the battle they rode out once again in the vanguard of Gondor's armies, riding to fight in the final defeat of Sauron's forces.

After the Battle, when the Captains of the West set out to force a confrontation with the Dark Lord, Imrahil and his swan-knights followed them on the hopeless journey to the Black Gate of Mordor. As the Morannon opened they made their last stand alongside the other soldiers of Gondor and the Riders of Rohan, but were saved from destruction when the Ring was unmade and Sauron's Dark Tower fell.