Mary of Nassau-Wiesbaden-Idstein German countess (1438–1480) Parents Mary of Nassau-Siegen John of Nassau-Wiesbaden-Idstein Children Anna of Isenburg-Büdingen Philip Graf zu Ysenburg-Kelsterbach Elizabeth of Isenburg Johann V, Graf zu Isenburg und Büdingen in Birstein Siblings Engelbert of Nassau-Wiesbaden-Idstein John of Nassau-Wiesbaden-Idstein Adolf III of Nassau-Wiesbaden Anne of Nassau-Wiesbaden-Idstein Philip of Nassau-Idstein Partners Graf Ludwig II von Isenburg-Büdingen