HAERES civil law. An heir, one who succeeds to the whole inheritance. 
     2. These are of various kinds. 1. Haeres natus, an heir born; the heir 
at law: he is distinguished from, 2. Haeres factus, or an heir created by 
will, a testamentary heir, to whom the whole estate of the testator is 
given. 3. Haeres fiduciarius, an heir to whom the estate is given in trust 
for another. Just. 2, 23, 1, 2. Haeres-legitimus, a lawful heir; this is one 
who is manifested by the marriage of his parents; haeres legitimus est quem 
nuptiae demonstrant; haeres suus, one's own heir, a proper heir; 
descendants. Just. 3, 1, 4, 5.