15HER MOTHER DIED IN CHILDBIRTH
Elektra never got to know her mother and it was due to her dying in childbirth. That's a fairly common trope in comics and television, but it wasn't something as simple as a horrible delivery that resulted in her death.
Her mother, Christina Natchios, was injured while only eight months pregnant
during the Greek Civil War... or she was killed by assassins hired by Orestez Natchios, her father's brother. Because there are two separate origins, we chose the one most recently published in Elektra #18 as it was published in 1998, three years after the previous origin revealed in Elektra: Root of Evil.
Whichever story you choose to believe, Elektra grew up not knowing her mother. She was raised by her father, Hugo Kostas Natchios, on a Greek island near the Aegean Sea. While being raised by her father didn't turn her into an assassin, it couldn't have helped to grow up without a mother in the house.