So my name is Károly Négyesi and although I typically ask people to call me Charlie for simplicity they still try. So the challenge in Károly is the "ly" because most think that's a consonant and a wovel -- no, it's one consonant, like "j" in the beginning of York or yacht. For the á, check the city of Bath. As for Négyesi, don't try, the "gy" (which is again one consonant!) does not exist outside of Ugric languages :) ( you can try the Commonwealth pronunciation of duke if you really insist )