Comment by IMEN on Trash Of The Count’S Family - Chapter 1

@....Z... Yes and no, Deruth is his biological father and Violan is his stepmother, his biological mother (Jour) died when Cale was a child, and his siblings are his half-siblings 

Edit: just Lily is his half-sister, Basen is his Stepbrother

Cale is the spitting image of his mother.

@....Z... Cale looks like is late mother his father remarried so the two kids are his step siblings