[7] The will and testament of Count John VII 'the Middle' of 1621 bequeathed John Maurice and his younger brothers from their father's second marriage the district of Freudenberg, some villages in the Haingericht[note 6] and a third part of the administration of the city of Siegen.

[9][10] After his older half-brother John 'the Younger' had accepted the homage of the city of Siegen for the entire county of Nassau-Siegen on 12 January 1624[11] and had voluntarily ceded the sovereignty over the Hilchenbach district with Ginsburg Castle [de] and some villages belonging to the Ferndorf [de] and Netphen districts to his younger brother William on 13/23 January 1624,[12][13] Henry and his brothers, with the exception of the oldest two brothers John Maurice and George Frederick, accepted only modest appanages.

After the death of her father in September 1661, Mary Magdalene succeeded him countess of Bronkhorst, lady of Wisch, Borculo, Lichtenvoorde and Wildenborch, and hereditary lady banneret of the Duchy of Guelders and the County of Zutphen.

Mary Magdalene died in the Nassauischer Hof [de] in Siegen on 27 December 1707.

[18][29][30] William Maurice, Sophie Amalie and Frederick Henry were elevated to the rank and title of prince(ss) in 1664.