The statement that is not true about the madrina in a traditional Spanish wedding is: "she accompanies the groom to the wedding."
In traditional Spanish weddings, the madrina typically refers to the woman who is a significant figure, often the godmother or a close relative of the bride, and she usually does not accompany the groom. Instead, the madrina may participate in various ceremonial roles, including signing the marriage license as a witness, dressing in formal attire, and sometimes giving a speech about the couple.