Legal inheritor descendants

In the category of descendants, the first grade descendants ( sons and daughters of the deceased) inherit by heads ( as many inheritors as there are persons) or by “estirpes” (sons or daughters of a previously deceased son or daughter). In the latter case, the children of that previously deceased person jointly inherit their parent’s share of the deceased’s inheritance.

The Succession rights of the surviving partner must also be taken into account

Step-children do not have the right to be called as legal inheritors.