Tiras

Tiras as angel who fell in love with an English noblewoman many centuries ago. He came to Earth and served her for years as a butler. One day, she was infected by an illness — the Black Death. He would have cured her of it the very second he knew that she had it, if it wasn't for a certain roadblock. Angels can only intervene with a human's life if a person prays for it, and a higher ranking angel gives them permission. Otherwise, the angel risks banishment. Even during her final moments, Vivianne didn't pray because she was too busy comforting Tiras. When he realized that she was dead, Tiras poured all his power to try and bring her back to life, but non-permitted resurrection is one of the forbidden angelic acts. As he watched her soul slip away, he was called before the archangels. They stripped him off his wings for committing one of the forbidden acts, banished him to Earth, and condemned him to serve every woman of Vivianne's bloodline for eternity.