If this went to Court surely the Judge would want to see the birth certificates of the children? They have no legal documents that we've seen, no doctors present as should be for a royal birth to sign it off. Fark supposedly born in the UK but no passport, his birth certificate tampered with and Legless's a joke.
The Judge would also want to review the welfare of the children regarding custody, and you can't just hand them over like parcels. Their health, progress, school, surely?
As
@toninottony says above "
the courts don’t take the other parents word for anything sometimes the court will appoint a separate lawyer for the children to determine what is in their best interests."
I just can't see it going to Court for the children, it would be a nightmare for the RF and their non-existence would be exposed. Some other solution will be cobbled together to hide the truth.