Lilith from Terra (created by me world). Mother of many demons and one angel (Arya). Still angel but cursed. Azraels hate and love. Great healer.
When she was young and the all worlds were young and greenly fresh she escaped from Paradise (PL: Raj) to Terra. There was some other angels who escape ealier like Lucyfer, Samael etc. (The reasons are different story). However her beloved Azrael wanted her back. After some years he stolen her child, little Avelia (later Arya) and blackmailed Lilith to come meet him. She reafused again to back, so he killed the child and seriously cursed Lilith ("you will have only demons children. No more angels." or something like that). In that moment she screamed that was their child. She was left on the dessert and she back to Lucyfer. She swore revenge on Azrael... But she cannot forgot her love to him. Also Azrael.
From that moment all her children were demons. She believed one of them will be enough powerfull to seriously hurt Azrael - Angel of Death.
More Lilith and about Lilith: [link]
Lilith and art are mine