Jonathan Pamphilj (pictured) and his sister Gesine Doria Pamphilj, were adopted by one of Rome's most famous princely papal families. The aristocratic siblings are in a bitter legal feud over which of their children will eventually inherit an estate reportedly worth billions.

BBC reports:
Jonathan and his sister Gesine Doria Pamphilj, frequently style themselves as Prince and Princess, although all former royal and papal titles were formally abolished in Italy when the country became a republic after World War II. At the heart of the row is whether the children of Jonathan Pamphilj, who is gay and had his offspring via a surrogate mother - have a legal right to the family fortune. Pamphilj is in a British-registered civil partnership with a gay Brazilian man, Elson Edeno Braga, and has two children born of foreign surrogate mothers, aged three and two. READ MORE