Madeleine Royale is a variety of white grape. It is mostly grown for table grapes or ornamental purposes, but is notable as a parent of Müller-Thurgau and Madeleine Angevine. It ripens extremely early, in some cases by the 22 July, the feast day of Mary Magdalene - hence the name.
Read more about Madeleine Royale: History, Crosses, Distribution and Wines, Vine and Viticulture, Synonyms