Forced Heirship

Forced heirship is a reference to the testamentary laws which limit the discretion of the testator to distribute assets under a will or codicil on death. Forced heirship laws are most prevalent amongst civil law jurisdictions and in Islamic countries, but also occurs in other major countries such as France, Saudi Arabia, the U.S.A. (in Louisiana), and Japan.
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When laws dictate how assets are to pass to relatives at death. Forced heirship occurs under Sharia law and also in many civil law countries where the concept of trust is not recognized.