Who is Muldumarec from The Lais of Marie de France and what is their importance?

Muldumarec appears in Yonec. He is a magical lord who can change into the form of a hawk and read the mind of his lover, who is locked away in a tower. Muldumarec can also see into the future, and prophesies the birth of Yonec and his avenging of his death. Muldumarec dies after being injured in a trap set by his lover's jealous husband.