Maria of Nassau (1491–1547)
Maria, Countess of Nassau, Katzenelnbogen, Vianden and Dietz was a noblewoman from the Low Countries. She was the second and youngest daughter of Johann V of Nassau-Vianden-Dietz and Elisabeth of Hesse-Marburg. She was the aunt of William the Silent.
In Siegen on 17 February 1506 she married Jobst I, Count of Holstein-Schauenburg, with whom she had 12 children, including:
- Otto, died young
- Adolph III, Elector and Archbishop of Cologne from 1547 to 1556
- Anton, Elector and Archbishop of Cologne from 1556 to 1558
- John V, Count of Holstein-Schauenburg from 1531, married in 1555 to Countess Elisabeth of East Frisia
- Cordula, married:
- # on 8 April 1529 to Count Everwin of Bentheim
- # in 1536 to Count Gumprecht II of Neuenahr-Alpen
- Otto IV, co-ruler from 1531 to 1560, ruling Count of Holstein-Schauenburg from 1560
- Jobst II, ruling Lord of Gemen from 1531, married in 1561 to Elisabeth of Palland
- William II, Provost of Hildesheim
