Princess Astrid is the daughter of King Vargas, the ruler of Miscellania. She lives with her father and her brother Prince Brand in the castle on the western side of their island. Male players get engaged to Astrid during the Throne of Miscellania quest; if the player character is female, they will get engaged to Brand instead. She also features in the Royal Trouble quest. She is rather vain (a quality she shares with her brother) and loves flowers and archery.
Male player characters have the option of marrying her during Blood Runs Deep. Astrid and Brand are killed by the Dagannoth Kings towards the end of the quest, and are cremated in pyre ships.
If the player was male during Blood Runs Deep and thus married her, Princess Astrid also features in Nomad's Elegy, where she aids the player in Limbo, and is killed by Nomad.