Queen of the storm giants

Neri was the queen of the storm giants, married to King Hekaton.
At one point, she went with her youngest child Serissa to the Sword Coast and the Moonshae Isles to meet friendly small folk.
 
Her brother-in-law, Uthor, found the dead body of Neri. Uthor went to his niece, Serissa, for counsel and the daughter of the queen managed to calm her father's rightful rage. After this, Hekaton decided to first uncover the truth behind his wife's demise, before taking action