Kattegat is the capital city of Ivar's kingdom, located on the shores of a fjord in southern Norway.


Kattegat is where Earl Haraldson resided, and it is the center of his powers. Events such as The Thing and other meetings among the Vikings are held in Kattegat, and it's also the center of commerce for the area, especially considering its location in a fjord and its access to sea travel. Farmers such as Ragnar and producers of various goods rely on Kattegat as the primary market where they can sell their goods. Later, after Haraldson is slain in single combat by Ragnar, the Lothbrok family abandons its farm, which has been put to the torch by the earl's men and relocates to Kattegat, where Ragnar rules as the new Earl.

Kattegat Lagertha

The Lagertha banner after her ascension as the Queen of the Kattegat, has been changed by adding the color red of Ragnar banner.

As Ragnar rises in status, Kattegat becomes the seat of his power and the center of his lands. His numerous raids bring much wealth to the town although it also suffers through several battles. Over time, it is shown to expand several times over. In the first episode of season four, Kattegat has expanded to fill the valley of the fjord and is now able to host the many ships coming back from the raid on Paris. The wealth of the city pours into Kattegat and feeds the flourishing trade. After the defeat of Ragnar in Paris, Aslaug becomes the sole ruler of Kattegat and transforms it into a city. Sas killed by Lagertha when she comes back to reclaim Kattegat; Lagertha subsequently builds extensive fortifications around the city. Kattegat is attacked by Egil and his men, but they are repulsed and Egil is captured. The army of Ivar and Harald attack Lagertha army for control of Kattegat, but they were defeated and forced to retreat. A second battle ensues and with the help of the Frankish soliders, Ivar takes Kattegat.


When King Ragnar was in Wessex, Aslaug was killed by Lagertha in cold blood shortly after her surrender. The current Queen is the Shield-maiden Lagertha. The heir to the throne is, presumably, Ragnar and Lagertha's son, Bjorn Ironside.

After the ascension of Ragnar Lothbrok, the colors of the house of Haraldsson have been kept but changed to a chevron-pattern.

The court of Kattegat is composed:

Former members of the court:



The banner of Kattegat, featuring the colors of the house of Haraldsson in a party per saltire-pattern.

List of rulers of Kattegat (Earldom > Kingdom):

Geographical Description

The Kattegat (Danish: [ˈkʰad̥əɡ̊ad̥]) or Kattegatt (Swedish: [ˈkatːəˈɡatː]) is a 30,000 km2 sea area bounded by the Jutlandic peninsula in the west, the Danish Straits islands of Denmark to the south and the provinces of Västergötland, Scania, Halland and Bohuslän in Sweden in the east. The Baltic Sea drains into the Kattegat through the Danish Straits. The sea area is a continuation of the Skagerrak and may be seen as a bay of the Baltic Sea or the North Sea or, as in traditional Scandinavian usage, neither of these.


  • The name Kattegat is given by Dutch sailors. It's Dutch for "cat hole," presumably because it was such a narrow passage that you would need to be a cat to be able to navigate and maneuver safely through it.
  • A possible name for the sea region in contemporary times, as suggested in the Knytlinga Saga, may have been Jotlandshaf (Jutland Sea).
  • Nowadays, Kattegat is the strait between Denmark and Sweden.
  • The tie-in book The World of Vikings confirms that Kattegat is located in Norway and in-universe in season 4.
  • Kattegat is filmed on location Lough Tay, County Wicklow, Ireland.