Oberon

Secret child born by Morgana with Mordred as the father.

During Bane's ritual to reclaim Bhaal in the Temple of Dusk from his banishment, Morgana was convinced she would see the first-born Gawain sacrificed. Instead, Bane had tricked her and stolen her newborn Oberon. As Bane was completing the ritual, Morgana cursed the child turning him into a centaur. The curse also served as a magic barrier against the final parts of the ritual.

The resulting explosion saw Oberon tossed through a portal with his fate unknown.