What is the back story of elektra?

Elektra NatchiOS is a Marvel Comics character first introduced in "Daredevil" #190 in 1973. She is a skilled assassin and martial artist, often depicted as a complex anti-heroine with a tumultuous past. Raised in Greece, her life took a tragic turn when her father was murdered, leading her to embrace a life of violence and revenge. Elektra's tumultuous relationship with Daredevil, as well as her struggles with her darker impulses, add depth to her character.