Daughters of Thanos <WIP>
Although the Black Order were also the adoptive children of Thanos, he had a parental relationship with only a few of his children, namely his three daughters; Gamora, Nebula, and Moondragon, whom he raised from much younger ages than the Black Order.
It is possible that Black Swan could also be considered to have been one of his daughters. Although she was older than her three younger sisters when she was adopted, she was significantly younger than the other members of the Black Order. She also retained her birth name, as her younger sisters did, unlike the Black Order.