– December 1636), German: Anna Johanna Gräfin von Nassau-Siegen, official titles: Gräfin zu Nassau, Katzenelnbogen, Vianden und Diez, Frau zu Beilstein, was a countess from the House of Nassau-Siegen, a cadet branch of the Ottonian Line of the House of Nassau, and through marriage Lady of Brederode, Vianen, Ameide and Kloetinge.

[1][note 2] as the ninth child and fourth daughter of Count John VII 'the Middle' of Nassau-Siegen and his first wife, Countess Magdalene of Waldeck-Wildungen.

[3] Anne Joanne was baptised in Siegen on Sunday 17 MarchJul..[4] Since 29 July 1612 she stayed in the noble abbeys of Keppel [de] and Herford.

The grandfather, Count John 'the Middle', congratulated the parents on the birth of their daughter in his letter from Rheinfels of 4 April 1620, but he himself would have preferred a son.

Three days after the birth, Johan Wolfert sent the drost of Vianen to the States of Holland with the message that his wife had given birth to "een jonge Soon, weesende sijnen eersten Soon, die hy dagte op te trekken om het Land dienst te mogen doen" ("a young son, being his first son, whom he had planned to raise to the service of the country").

Joost van den Vondel, in his poem De Rijnstroom about the River Rhine, which he dedicated to Johan Wolfert, wrote a couple of verses about the longing for a son.

[15] Because Johan Wolfert frequently had to visit The Hague for his duties, he bought a representative building on 3 Lange Vijverberg from Countess Emilia of Nassau in 1626.

[16] After Johan Wolfert was appointed governor of the city of 's-Hertogenbosch and the Meierij on 27 January 1630, the family moved into the Jesuit college as their official residence.

[21] Johan Wolfert remarried in The Hague on 11 February 1638[19][20][22][23] to Countess Louise Christine of Solms-Braunfels (Braunfels, 17 October 1606[23] – Vianen, 24 March 1669[19][23]).

Van Dyck visited The Hague in the early summer of 1631, where he painted the portraits of Prince Frederick Henry of Orange, his wife Amalia and their son William.

She wore a dark dress with a raised waist and wide sleeves, a lace composite collar, a pearl necklace on a brocade bow for the chest, and a fan in her right hand.