Gabriella is a Dunmer assassin and member of the Dark Brotherhood. She claims to be a women of fine but simple tastes. Gabriella apparently knows Olava the Feeble and in a conversation with Festus Krex claims to know how she’s going to die. She sends the player to kill Gaius Maro and informs them of the situation with Cicero.
She is one of the few to openly welcome the Night Mother claiming she deserves their "unwavering support and respect" but finds Cicero too "exuberant" for her liking.
"Well, I enjoy moonlit nights, taking long walks on the beach, knitting and unicorns. In fact, I once took a seaside stroll, on a moonlit night, and discovered a unicorn... which I proceeded to stab in the throat with a crochet needle." -Gabriella