Phenel

Feynail is Rayneshia's father and Duke Serjiad Corwen's son-in-law. Feynail is married to Sarariya, Serjiad's daughter and Rayneshia's mother. Feynail and Sarariya have three children: Risselthea, Rayneshia, and Icelus.

Prior to the Catastrophe
Feynail came from a noble family in Eastal with an earlship, and was adopted by his wife's family when he married her. Since Serjiad has no son, Feynail and Sarariya's son, Icelus, will be Serjiad's successor.

Return of the Goblin King arc
Feynail makes his only appearance during The Return of the Goblin King, when he is informed of the sudden appearance of hordes of goblins that far outnumber the forces of the People of the Land. He tells his daughter to remain at the Ancient Palace of Eternal Ice with her grandfather, while he and the other nobles plan for the coming invasion.

Trivia

 * The anime has Feynail call Duke Serjiad his father, whereas he is Serjiad's son-in-law in the light novel.