Knights of Tezoth

No. Sarnissa was the leader of the mercenary squad. At some point, we started recruiting NPCs as well. One of them showed up with gigastats and skills, going on and on about how awesome Sarnissa was. Before one quest, he decided to give her a ring as a token of gratitude. It turned out to be a trap — he kidnapped Sarnissa, sawed off her head, and put it in a jar on a shelf, since she was a giga-vampire and the guy loved hunting powerful creatures. The quest fell apart because all the fights relied on her imbalanced skills, and the campaign itself was coming to an end anyway. 

Oh right, and the best girl wasn't her, but Elrina from RI2.