Just curious how Welsh would pronounce Roald Dahl and Irish family name Ahern.?

Ro-ald da-hl with stresses on both vowels in general





and Ahern um i would pronounce it Ah -herrn. with a rolling R and a stresses on the vowels.

Just curious how Welsh would pronounce Roald Dahl and Irish family name Ahern.?
The Welsh would pronounce it in the same way as the English would as they are names. There would probably be an accent but pronounciation would be the same.