Hi.
Neither of us are Welsh, but we have Welsh heritage. We like to use a name with Welsh ties as a middle name. So far we are thinking about using the Welsh form/equivalent of a name that has meaning to us. Names as:
Mari (as word marry)
Alis (AL-iss, Alice with longer S-sound/Ellis with A-sound)
Elen (EL-en, both E as in word elephant)
Catrin (KAT-rin, Catherine with hard T-sound)
Hanna (HAH-na)
(Pronunciations I have come across, others might be in use as well.)
But these names are versions of classic, well-know names. They might seem incorrect compared to English spellings. When I read about or test them on people I know, people understandably see them as creative spellings or misspellings. The response to creative spelling seems very negative. I know these names are versions with history behind them, but we don't live in Wales and can't expect others to know. Are we setting up for problems and negative judgement if we choose a name like these? Possible first name and surname is typically English.