Alazon is the former Empress of Seisakoku and mother of the twins Saralegi and Yelshi. Their father was King Gilbart, the former king of Small Shimaron. When they were born Saralegi was stillborn and so she tried to used the forbidden box Toudo no gouka and prayed to give her life to bring him back to life. It is unknown whether her use of the box actually had any effect but Saralegi came back to life and a few years later she lost use of her legs and a few years after that lost use of her hands until in the end she became a mummy.
When Saralegi was 4 she sent him to live with his father. Saralegi thought that when Alazon found out that he had no houryoku that she abandoned him and sent him to live with his father in Small Shimaron but she sent him there because she thought that if he stayed in Seisakoku the shadow of death that loomed over him would grow and god would take away his life.
Differences in the anime
In the anime she is still alive.