Deletion of Prince Umberto of Savoy-Aosta

Comment: While we grant notability to the line of succession in an active royal line that actually holds title in a country that's actually a monarchy, nothing in Wikipedia's rules extends that to the line of succession for a title which exists only on paper and holds no actual power over anything in the real world. If and when he actually holds whatever now passes for the throne, there might be a legitimate basis for an article to be created, but being an heir to a ''paper'' throne is not enough to exempt a person from having to pass  on the sourcing
Stance: delete
Cited policy: Wikipedia:Notability (WP:GNG)