Lumia, if only that celebrity couple (whom I've forgotten ... sorry!) knew that people in fourteenth-century Italy were, effectively, naming their daughters Apple, they might have had second thoughts! This is wonderfully informative and extremely funny - thank you.
I guessed 'grapefruit', because that's what it is in Afrikaans, but I'd never looked up the origin: interesting how some people saw a citrus fruit as an apple and others as a grape.