When she was merely an infant, her mother, Asta Hansdottir, died from a fever in the night. She was with-child at the time, now both her mother and unborn sibling rest in Valhalla awaiting their reunion.
Three winters later her father, Carr Ahlberg, died in battle alongside Ragnar Lothbrok.
Carr was Ragnar's close friend, it was Ragnar who swore to her dying father that he would treat Raena as if she were his own and ensure her safety, as she was still a child.
Now, at the age of 20 years, Raena Carrsdottir fights in her fathers place as a shield-maiden.
(Extra info regarding ages)
Raena is currently 20 years old.
Björn is 19 when Raena is born, making Björn now 39.
Ivar is two years younger than Raena, at 18 years old.
Raena is the same age as Hvitserk (20).
Sigurd is 19 & Ubbe is 21.
Lagertha, Aslaug, Ragnar, Floki and Helga are all roughly in their late forties to early fifties.