i didn't know how to word it, but his mother is linked to the royal palace by being the one who got impregnated by the current emperor, Cedric's father, which I hope you've read that part haha
Unlike Cedric and Julius' mothers who were born from commoners, Elionore's mother was a noble from another family. Elionore was a very good daughter, but she was also the best sister Julius' mother could have.