Bloody hell - guys. This would be fascinating to explore ICly:
In Marckx v Belgium, 'Ms. Paula Marckx, being unmarried, gave birth to a daughter in 1973. Under Belgian law, no legal bond between an unmarried mother and her child resulted from the mere fact of birth. To create the bond, the mother had either to recognise maternity in specific proceedings or to adopt the child. In both cases, the child's inheritance rights remained less than those a child born in marriage received automatically.'
Woah. Might do it myself if no one has by the time I'm free.
Edit: I can understand there being no link between an illegitimate child and the father. But the mother, that's new.
Edit 2: I believe the relevant law has since been abolished.