Story
Sieghart is Rudeus's fourth child and second son, born to his first wife Sylphiette. His green hair raised the fear that he might be the reborn Demon King Laplace: in this world, green hair is linked to the Laplace Factor. This left Sylphiette depressed for a long while, but Orsted firmly assured them that the Laplace Factor had not yet converged and that the child was an ordinary infant.
Rudeus named his son Sieghart, basing it on the name of the immortal hero of his past life, Siegfried. When the party brought the child to the Sky Fortress, the Dragon King Perugius, who had long promised to give their son a name, confirmed that he was not Laplace and granted the boy the middle name “Saladin.” Thus the infant became Sieghart Saladin Greyrat, nicknamed Sieg.