Michael Hirst is getting back into the world of Vikings. Variety has learned that Michael and Horatio Hirst have set up the epic historical drama “Bloodaxe” at Amazon Prime Video.

The series is said to tell the true story of famous Viking warrior Erik Bloodaxe and his wife, Gunnhild, Mother of Kings.

This will be the latest series set in this world for the Hirsts. Michael previously created the hit History Channel series “Vikings” and served as an executive producer on the Netflix followup “Vikings: Valhalla.” Horatio, meanwhile, appeared in multiple episodes of “Valhalla.” “Bloodaxe” will mark Horatio’s series writing debut.

“I feel blessed and deeply excited that Amazon has given me the opportunity to return to the fantastic world of the Norse Sagas and the men, women and gods of the Viking world who have come to mean so much to me,” said Michael Hirst. “Horatio and I intend to open your eyes to incredible new characters and unbelievable stories, all of which happen to be true and many of which changed the course of history.”

The official logline for “Bloodaxe” states that it follows Bloodaxe and Gunnhild “as they fight for the throne of Norway. The land is torn apart by fierce rivals, shifting loyalties, and bloody betrayals. With war looming and chaos consuming the kingdom, drawing in the ruthless Kings of other Scandinavian countries, and even a powerful English ruler, the stage is set for a thundering, cataclysmic, compelling and utterly magical new Viking Saga.”

“We are thrilled to partner with Michael and Horatio Hirst, who have an impressive track record bringing historical dramas to life with stunning authenticity and gripping storytelling,” said Vernon Sanders, head of television for Amazon MGM Studios. “This story is a fascinating tale of Erik Bloodaxe and we can’t wait to unveil this new chapter to transport our global customers back to a fascinating era of history.”

The Hirsts serve as creators, writers, and executive producers on the series. Steve Stark executive produces under his Toluca Pictures label, with Arturo Interian, Morgan O’Sullivan, John Weber, and Sheila Hockin also executive producing. The series is produced by MGM Television, a division of Amazon MGM Studios, with MGM TV having produced “Vikings” and “Vikings: Valhalla.”

“Vikings” ran for six seasons and nearly 100 episodes at History, while “Valhalla” ran for three seasons at Netflix. In addition to those shows, Michael is known for the MGM+ series “Billy the Kid,” which is due to end with its upcoming third season, and the Showtime drama “The Tudors.” He also wrote the critically-acclaimed films “Elizabeth” and “Elizabeth: The Golden Age.” In addition to his role in “Valhalla,” Horatio also starred in “Billy the Kid” as Charlie Bowdre.

Michael is repped by WME, United Agents, and Davis Law Group. Horatio is repped by United Agents, Zero Gravity Management, Davis Law Group, and Telescope Agency.