Aideneus

Aideneus is the oldest child of Sauron and Melkor, and the oldest nephew of Manwe, Varda, and Curumo. He is the older brother of twins Nyx and Erebus, twins Zagreus and Ren, Hades, Thanatos and half brother to Primrose.

Early Life
Aideneus was born sightly after his parents left Valinor. Sauron was very young when his son was born, so before taking over the land that is now Mordor. He lived in woods and mountains with his parents. When he was roughly 4, a small group of the vala; Orome, Manwe and Irmo went to find Sauron and Melkor. Melkor picked Mairon off his feet and forced him to leave Aiden behind. This put a rift in the three of them's relationship. When Aideneus was roughly 5 when his twin siblings, Nyx and Erebus were born. He was roughly 3 when Primrose was born, though she was sent to live in Valinor with her mother. He was either 13 or 14 when twins Zagreus and Fate were born. He was 16 when he left to go back to Valinor, before Hades was born.