Forced heirship is a legal concept that mandates a portion of a deceased person's estate to be inherited by certain family members, typically children or spouses. This rule ensures that these heirs receive a minimum share of the estate, regardless of the deceased's wishes expressed in a will. In many jurisdictions, forced heirship laws aim to protect the rights of family members and prevent disinheritance. The specific rules and percentages can vary by country, but the principle remains the same: certain heirs are entitled to a predetermined share of the estate, promoting family unity and financial security.