Princess Stephanie of Windisch-Graetz (1933-2015) (1933–2015) Parents Prince Ernst zu Windisch-Grätz Helena Skinner Children Alexander Wilhelm Christoforetti Angeline Maria Christoforetti Claudia Maria Christoforetti Nikolaus Josef Christoforetti Siblings Princess Eleonore of Windisch-Graetz Princess Elisabeth of Windisch-Graetz Prince Otto of Windisch-Graetz Partners Josef Christoforetti