Related topics
Heir apparent
An heir apparent is the first person in the order of succession and who cannot be displaced from inheriting by the birth of another person, assuming no change in the laws governing succession. A person who is currently first in the order of succession but could be displaced by the birth of a more eligible heir is an heir presumptive. Today these terms most commonly describe heirs to (e.g. titles of nobility) or offices, especially when only inheritable by a single person.
*As an Amazon Associate I earn from qualifying purchases.