Salatrel engaged in an alliance with a faction of the Borg Collective who assimilated her lover to serve as Speaker of the Borg Collective. Using their joint operations, she engaged her plan of reanimating the remains of Captain James T. Kirk in order to destroy him as well as destroy the Federation.
After Kirk's return from the dead, she would employ deception to convince Kirk that he was a loyal Romulan citizen whose wife and children were massacred by Starfleet Captain Jean-Luc Picard. She would also attempt to seduce him in order to convince him of this role.
Her suspicions of the Borg acting with the Federation to destroy the Romulan Star Empire would take hold of her during the latter stages of her plan which resulted in her attacking Starfleet forces and ended with her death.
Salatrel was completely dedicated in her goal of destroying Kirk who she blamed for her family's disgrace at the Battle of Icarus IV. As such, she was considered a rogue officer who had no connections to the Imperial Armada.
Despite her intelligence, she was continually hindered by her vendetta against Starfleet and the affiliated prejudices. She was so committed to hating the Federation that she went to great lengths to bring Kirk back to use him as a weapon against Picard when a more conventional assassin would have changed nothing but her own perception of events, and disregarded the idea of a Federation ship laying a trap for her because she refused to admit that the Federation were anything more than murderers (again disregarding the fact that Romulans were often the instigators of the conflicts between the two sides). (TOS novel: The Return)
Either she was the daughter of Jannek or one of his siblings.