Carina Barbossa (previously Smyth) was an astronomer around the middle of the 18th century. She is the deurtagonist in Pirates of the Caribbean: Dead Men Tell No Tales.
After the death of her mother, Margaret Smyth, her father, Hector Barbossa, left her at an orphanage with a diary that contained clues to finding the Trident of Poseidon, which had the ability to break all curses in the ocean.
As Carina grew up, she began to take interest in science, astronomy, and math. Her aptitude with these subjects led others to believe she was a witch. Because of this belief, she was eventually imprisoned and scheduled to be hanged. She escapes and eventually meets Henry Turner and Jack Sparrow, who are also seeking the Trident for their own reasons.