heir presumptive

Heir presumptive is a person who is expected to inherit a title or position, such as a monarchy or noble estate, based on current laws or traditions. However, this person's claim can be challenged or changed if a more eligible heir, like a closer relative, is born or becomes available in the future. Essentially, the heir presumptive is the current likely successor, but their claim is not guaranteed and depends on events like the birth of new heirs.