Haggith

Festive; the dancer, a wife of David and the mother of Adonijah (2 Samuel 3:4; 1 Kings 1:5,11; 2:13; 1 Chronicles 3:2), who, like Absalom, was famed for his beauty.

Source: Easton's Bible Dictionary
Haggith

(festive; a dancer ), one of David’s wives, the mother of Adonijah. (2 Samuel 3:4; 1 Kings 1:6) (B.C. 1053.)

Source: Smith's Bible Dictionary