Tønsberg was a village in Norway. Following the Infinity War and the Decimation, it was repopulated by the surviving Asgardians who, in homage to their destroyed homeworld Asgard, renamed it New Asgard.
Centuries ago, the Frost Giants of Jotunheim, led by their king Laufey, arrived to Tønsberg, planning to conquer Midgard, freezing everything in their path using the Casket of Ancient Winters to plunge the world in a new glacial period.
During World War II, Johann Schmidt, German SS officer and leader of HYDRA, organized an incursion in Norway searching for the Tesseract. Following its trails until reaching a church full of Viking warriors entombed within its walls, Schmidt interrogated the Church Keeper, who tried to make Schmidt cease his search, claiming the Tesseract was a simple myth.
Schmidt, convinced of its existence as the most valuable object in Odin's Vault, located a fake replica inside one of the tombs, and threatened the Church Keeper to kill all the inhabitants of the village if he didn't help him locate the Tesseract. Schmidt then focused his attention at a sculptured mural of Yggdrasil, finding a hidden box behind a Nidhogg depiction in the mural with the actual Tesseract inside.
The Church Keeper warned Schmidt that he wouldn't control the power of the Tesseract, but Schmidt simply killed him and ordered his army to destroy the village.
Following the Infinity War during which the Mad Titan Thanos used the power of the Infinity Stones to wipe out half of all life in the universe Tønsberg was repopulated by the surviving Asgardians who renamed it New Asgard. The aftermath of the war and the inability to undo Thanos' genocidal work left the Asgardian king Thor bitter and he became a drunken overweight hermit who cared nothing about his people. Over the next five years the Asgardians lived peacefully as fishermen, accepting the fact that their days of battles and glory were over.
Thor's days of drunken slumber came to an end when his fellow Avengers informed him about another chance to bring back from the dead all the people who were killed by Thanos. The Time Heist resulted in all six Infinity Stones from different time periods in the hands of the Avengers who used their power to resurrect the dead. However, their actions also brought the past version of Thanos to 2023, and the combined armies of the resurrected Asgardians, Wakandas, and other heroes successfully defeated the intergalactic warlord once and for all. Following the Battle of Earth, Thor returned to New Asgard, where he made Valkyrie the new Queen of Asgard while himself joining the Guardians of the Galaxy.
- Tønsberg is regarded as the oldest town in Norway.
- In the comics, the Asgardians settled near Broxton, Oklahoma after Asgard felt on Earth after the Siege of the city.
- In the alternate reality of Earth-3515, New Asgard was a city built by the Asgardians over the ruins of New York City after they conquered Earth.