Sophie Polyxena of Sayn-Wittgenstein-Hohenstein German princess (1709-1781) (1709–1781) Parents Concordia Gräfin zu Sayn-Wittgenstein-Hohenstein-Vallendar August David zu Sayn-Wittgenstein-Hohenstein Children Mary Eleonor Concordia of Nassau-Siegen Frederica Augusta Sophia of Nassau-Siegen Anne Charlotte Augusta of Nassau-Siegen Frederica Wilhelmina Polyxena of Nassau-Siegen Charlotte Sophie Louise of Nassau-Siegen Siblings Frederick of Sayn-Wittgenstein-Hohenstein Heinrich Ernst August of Sayn-Wittgenstein-Hohenstein Partners Frederick William II, Prince of Nassau-Siegen