A more thorough explanation:

jus haereditatis

jus haereditatis is a Latin term used in civil law to refer to the right of inheritance.

When a person dies, their property and assets are passed on to their heirs according to the laws of inheritance. The right to inherit is known as jus haereditatis.

For example, if a person dies without leaving a will, their property will be distributed among their heirs according to the laws of intestacy. In this case, the heirs have the right of inheritance or jus haereditatis.

Another example is when a person writes a will and specifies who should inherit their property after their death. In this case, the named beneficiaries have the right of inheritance or jus haereditatis.

These examples illustrate how jus haereditatis is the legal right of an heir to inherit the property and assets of a deceased person.