Situated on the Ironbound Archipelago, Halgrim is led by a female king (the term is used for both genders) named White Estrid, an albino warrioress with snow-white hair and pale blue eyes. Estrid does not possess the traditional linnorm head hanging over her throne, but instead has a live linnorm coiled up behind it. The linnorm does not speak, save to confirm that yes, it had been defeated fairly by Estrid, and has traded its service for its life. The creature is rarely referred to, but when mentioned, it is called simply “Estrid’s Pet.” Estrid herself led a fleet of 15 longships in a raid against the Nidalese port at Nisroch 4 years ago, slipped through a Chelaxian blockade at the Arch of Aroden, and put in triumphantly at Absalom with her plunder.
Sources: Pathfinder Chronicles Campaign Setting