They would take into account current private international law (national laws governing the death of foreigners living there) and make dispute settlement easier for issues involving marriage, divorce, accidents and so on where there are links to other countries.
Iedomāsimies gadījumu, ka vācu pilsonis, kas devies pensijā, pārceļas uz Spānijas dienvidiem, lai tur pavadītu mūža nogali.