"Dynaheir is "wychlaran" witch from Rashemen and is traveling alongside her champion Minsc, who has sworn to protect her. She and Minsc have been sent to examine if the prophecy of the Bhaalspawn is true. In her search, she is taken captive by a group of gnolls and held prisoner at their island stronghold. She shows herself to be a capable wizard, but has a very steel-set attitude, not thinking much of what anyone else has to offer. Canonically, the events of Baldur's Gate are completed with Dynaheir in the party."
Source: Wikipedia, "List_of_Baldur's_Gate_characters", available under the CC-BY-SA License.