Those Viking Women Warriors,,,

 Good analysis by David Perry (@Lollardfish), who is absolutely worth following for his writing on disability and wider equality issues, but who is also a medievalist in his day job, and a fan:

Viking Women Warriors and Diversity in Literature

Summary: probably not warriors per se, but still stands perceived wisdom on its head as it suggests the Viking first wave came as colonisers, not raiders, but then spins it into a discussion of how we approach diversity in fantasy, and how much or how little history limits us.