Kangaxx

Kangaxx was a powerful lich residing in Athkatla. At a unknown time his enemies attacked and defeated Kangaxx but not knowing how permanently kill him decided to scatter all parts of his boy all over the country. Some time later Kangaxx met the young Abdel Adrian and tricked him in recovered all parts of his boy; however when Abdel and his party delivered to him the past part Kangaxx tried to kill them all but after a fierce battle was Abdel that resulted victor. So Kangaxx was at last destroyed for good.

Reference
Baldur's Gate II: Shadows of Amn (game)