Usna's mother

Usna's mother is a sidhe member of the Seelie court. Her name is not revealed. According to Frost, she is a favourite at the Seelie court.

She became pregnant by her sidhe lover who was already married. The cuckolded wife cursed Usna's mother and turned her to a cat. Usna's mother gave birth to Usna while in that form. When Usna became an adult, he broke his mother's curse, and killed the woman who cursed her. For that he was banished from the Seelie court - more because the woman was King's mistress than the vendetta killing.

Despite Usna's banishment from the Seelie court, his mother still speaks to him and meets with him outside the courts for picnics.

Usna's mother is mentioned in Seduced by Moonlight, A Stroke of Midnight, A Lick of Frost, Divine Misdemeanors, and A Shiver of Light,

Note:
In A Stroke of Midnight it is mentioned that Usna's father took the form of a cat.