Vikings season 3 finale spoilers
Ragnar's (Travis Fimmel, left) death was teased in the Season 3 finale promo video of "Vikings" after the French archbishop (Laurence Foster, right) converted the Nordic lord into a Christian. History Channel

Don’t say we didn’t warn you! Before the Season 3 premiere of “Vikings,” we cautioned our readers not to get too attached to the characters of Michael Hirst’s History Channel drama. And we weren’t the only ones giving such sober advice. Katheryn Winnick, who plays the fierce shieldmaiden Lagertha, divulged during an interview with Yahoo TV that a few fan favorites would be meeting their demise during the third season.

“We have lost a few characters,” she confirmed in August, noting that the death toll would rise in Season 3. "Some beloved characters and some amazing characters, so it's been a little bit in mourning on the ‘Vikings' set. But I'm telling you, it's going to be amazing this year."

She was right, it was. But like all good things, even the third installment of the historical drama must come to an end -- and it will on Thursday, April 23. According to the title of the finale, episode 10, it’s safe to assume that the number of casualities will continue to grow in “The Dead.” But which character will end up ascending to Valhalla -- or should we say Heaven?

In episode 9 Ragnar revealed that he was a “dying man," an admission that took us by surprise considering we’ve thought of him as more of a god than a mortal for quite some time now.

“When I die, I want to be reunited with my Christian friend, who happens to be in your heaven,” Ragnar explained his dilemma to the French archbishop (Laurence Foster) of wanting to join Athelstan (George Blagden) in the afterlife he’s learned much about. But unfortunately for the king, the bishop is convinced the only place Ragnar will go after he dies is hell.

“That is not your decision to make,” Ragnar responded.

That’s when Ragnar decided to get baptized (which would increase his chances of reuniting with the priest) -- an event his pagan people saw as a betrayal. And according to the promo video for the Season 3 finale, Ragnar’s people will turn against him in episode 10 just as he's turned away from the Viking beliefs.

“No Christian king will ever be allowed to rule our world,” a character says in the trailer for episode 10. “Someone needs to kill him.”

Will Ragnar be killed off in the Season 3 finale of “Vikings”? Sound off with your theories in the comments section below and don’t forget to tune in to “The Dead” on Thursday, April 23, at 10 p.m. EDT on History Channel.