u/Gold_Instruction7273

Any ideas?

Let's say that every single person who has a potential claim to the throne suddenly dies and so nobody can claim the throne. The current monarch also dies as well.

I feel like DS3 soft retconned this by making so far away and past Kingdoms returned and moved closer to lordran.

Whilst the current political reality is that parliament is sovereign, many judges through years have implied that the courts can potentially ignore Acts which go against fundamental rules of law.

In addition, parliamentary sovereignty is likely to have originated from the common law itself, as there is no legislation or political conflict (such as the civil war) which has established parliaments ultimate right. As a result, parliamentary sovereignty is potentially just a political convention which the courts respected

The monarch also doesn't have to legally sign bills into law or to abdicate without their own consent