Haeres Factus Law and Legal Definition

The term haeres means heir. Haeres factus is a created heir or an heir appointed by will, or a testamentary heir to whom the whole estate of the testator is given.

Haeres factus of the Roman law is an heir created by will. [Thorburn v. Gates, 225 F. 613, 615 (D.N.Y. 1915)].