Vikings: Hervor was the daughter of the Angantyr. Because he died before her birth, Hervor grew up as a slave. She fought with a Viking clan, but when she learned who her father was, Hervor set out to inherit his magic sword, Tyrfing.
The Vikings approach to the peoples they encountered was brutally pragmatic; if those people were strong and well-organized, the Vikings traded peacefully with them. If they were weak and disorganized, the Vikings raided them and invaded them.