I have the same name as my aunt. My parents never asked her. It's spelt the 2nd most popular way. She has a son with the name Louie and I have always wanted to name a little boy Louis. Ever since I was about 14. Pronounced Lou-ie BTW. However, as we share the same name (just different spellings) and I plan on doing the same for my son, do I have to ask?? Her son is obviously my cousin and he is 17 so probably not an issue at all. We don't see each other that much anymore unfortunately, but do still see each other.