A richly furnished grave excavated in 1878 near the Viking town of Birka in eastern Sweden had long been assumed to hold a powerful male warrior. The grave was equipped with an arsenal of weapons, as well as a set of gaming pieces and a gaming board, which were seen as indications that the deceased was a military commander. A pair of horses was also found in the grave, one bridled as if prepared to ride off into battle once again in the afterlife. More than a century later, several osteologists concluded—and genetic analysis confirmed—that this Viking warrior was actually female.[…]

Source:https://www.archaeology.org/issues/339-1905/trenches/7556-trenches-sweden-viking-female-warrior