Season one closely follows the plot of Cornwell’s book The Last Kingdom, as well as The Pale Horseman.
Season two is based on The Lords of the North and Sword Song, while season three is based on The Burning Land and Death of Kings novels.
However, since the series was picked up by Netflix, the show has seen some considerable plot changes from the source material, which many believing it to be a blessing.
As East announced, filming has wrapped for the last season in Hungary and a release date has yet to be announced, with many suspecting that it will air in 2022.
All seasons of The Last Kingdom are available on Netflix now.