In the broadest sense, the word "
" means any person enjoying a right in the
. The proof of the heir's quality may be provided by all methods, including the production of a documentary evidence.
- Forced heir: the descendants, in the absence of descendants, the ascendants; in the absence of descendants and ascendants, the surviving spouse.
- Heir to the entire estate: heir intended to receive the whole estate.
- Heir by universal title: heir receiving a share on the universality of the properties;
- Heir of subsequent rank: heir of more remote degree, coming after the heir of more favorable rank and who comes only in inheritance in the event of renunciation;
- Heir entitled to inherit: heir who has not yet made a choice;
- Presumptive heir: a person who, as the date of an act of
) for example and subject to the death of the grantor by said date, would become heir. The children are therefore the presumptive heirs of their parents; in the absence of children, the
; a grand-son is not the presumptive heir of is grand-father on the father side if, as the date of the act, his father is alive et has not renounced the inheritance.