In MY humble opinion, it is definitely OK to pronounce a name from another country in one's mother tongue or in the language of the country one lives in. Think of all the Greek names a number of people here like very much - I suppose they mostly pronounce them English for most of them live in the US or Great Britain or Australia. And I think that's more than OK, as long as different, language-specific pronounciations of a name don't get mixed up, which I hate (some Germans have that with French names; they pronounce them half French, half
German - ick).
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As for your question, Dracotorix: I particularly love
Luca on a girl, both in English, Hungarian and
German, and even in French. I think it sounds much more feminine in a way anyway, and I prefer
Lucas and
Lucian etc. to
Luca for a boy.