Suldanessellar

Suldanessellar is an elven city in the Forest of Tethir. It is ruled by Queen Ellesime and houses the Tree of Life. The city is a meeting places for all elves and their tribes. The city is heavily protected from outsiders as there are few entrances to the city, all of which are warded.

Baldur's Gate II
In Baldur's Gate II Chapter 7, Gorion's Ward enters the elven city and finds that the city has been infested with powerful enemies that Jon Irenicus has unleashed, and that Jon himself is absorbing power from the Tree of Life. The player needs to get the necessary items to enter the palace and then defeat Irenicus.