Mary Magdalene of Nassau-Idstein German countess (1592–1654) Parents Mary of Nassau-Dillenburg John Louis I of Nassau-Idstein Children John Louis of Ysenburg and Büdingen Countess Philippine of Ysenburg and Büdingen Countess Ernestine of Ysenburg and Büdingen Christian Moritz zu Ysenburg-Büdingen Siblings Margaret of Nassau-Idstein John Louis II of Nassau-Idstein Anne Catherine of Nassau-Idstein Partners Wolfgang Henry of Ysenburg and Büdingen