Answer
Based on official Jordanian legal texts
Yes. Once lineage is established by a final ruling, the child inherits from the father exactly like his other children: included in the estate inventory and entitled to the full prescribed share, male or female, with no distinction arising from how the lineage was established.
How it works in practice
- During the father's life: established lineage places the child in the position of a son or daughter for every future effect — including inheritance when the father later dies.
- After the father's death: where lineage is established through a claim brought against the heirs after death, the child enters the circle of heirs — the estate inventory is corrected and the shares recalculated on that basis.
What if the estate was already distributed?
Lineage established after distribution opens recovery of the child's share from those who received the estate and correction of the division, under the procedures the courts apply. These issues grow more complicated as time passes and heirs deal with the assets — one more reason not to delay lineage claims.
Tightly bound to real-world cases
This right is the true driver of many post-death lineage claims — and the reason they are fought so fiercely: every dinar established for the child reduces the other heirs' shares. The quality of the evidence is the actual battlefield.
An important note
The inheritance rules themselves (shares, exclusion, Quranic heirs and agnates) apply to the child after lineage is established just as to any heir — specialist details that depend on the heir structure of each case.
If this is your situation, you are looking at a file that combines lineage and inheritance; it deserves a lawyer fluent in both tracks.
This is a general answer based on available Jordanian legal sources and does not replace advice from a specialized lawyer in an actual dispute.