I would hold off on naming your son Adolph if you're going for a name that works in both English and Swedish... It's a name, sure, but it kind of fell out of fashion.
Statistics Sweden are publishing some statistics:
> 131 men have Adolf as a first name normally used
> The average age for the name Adolf is 74 years amongst men
https://www.scb.se/en/finding-statistics/sverige-i-siffror/n...