gvenet Angy princess quartet

It looks like you might be referring to the "Gvenet Angy" or "Gwenyver" series, particularly related to a "princess quartet." However, there seems to be a misunderstanding or a typo in your request, as there is no widely known work by that name. If you mean a specific series of books, stories, or a type of media featuring a quartet of princesses or similar themes, please provide more details or clarify the title, and I’d be happy to help you with more information!