Gamora

Gamora is a major character in the Marvel Cinematic Universe.

Background
Gamora was born on Zen-Whoberi. When she was young, the warlord Thanos invaded her home and killed half of her species, the Zehoberei, alongside her parents. Afterwards, he adopted her as his daughter and trained her as an assassin.

During her training, Gamora fought with Thanos's other children, the Black Order and Nebula. Gamora and Nebula, though sharing enmity to Thanos for killing their family, would often spar, becoming cybernetically enhanced to fit Thanos's deeds. At some point, Thanos sent Gamora and Nebula to find the Soul Stone. Though they found it on Vormir, they burned the map so that he would never find it. In truth, he was aware that they had found the Soul Stone, but feigned ignorance for the time being.