Mary of Nassau-Siegen
German countess (1418-1472)
- Sex or Gender:
- female
- Date of Birth:
- 1418-02-02
- Date of Death:
- 1472-10-11
- Father:
- Engelbert I of Nassau-Breda
- Mother:
- Joan of Polanen
- Spouse:
- John of Nassau-Wiesbaden-Idstein
German countess (1418-1472)