What are the most unforgettable friendships and alliances in the Viking TV series?

The Vikings TV series features several friendships and alliances that are both memorable and significant. One of the most unforgettable friendships in the series is that of Ragnar Lothbrok and Athelstan. Ragnar, the main character, is a Viking warrior who is intrigued by the Christian monk, Athelstan, and takes him as a slave. However, as they spend more time together, they form a deep bond that lasts until Athelstan's death. Their friendship is a central theme of the series, and their shared experiences help shape the storyline.

Another memorable alliance in the series is that of Lagertha and Kalf. Lagertha is a fierce Viking warrior and a close ally of Ragnar's. After a series of betrayals, she becomes the Earl of Hedeby, with Kalf as her co-ruler. Although they have a rocky start, they eventually develop a deep and complex relationship that sees them fight side by side and overcome many obstacles together.

Finally, there is the alliance between Bjorn Ironside and Halfdan the Black. Bjorn is Ragnar's son and a powerful warrior in his own right. Halfdan is his uncle's brother and also a skilled fighter. Although they initially start out as enemies, they eventually form a bond and become allies. Their friendship is put to the test several times throughout the series, but they always manage to overcome their differences and work together.