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Birth:          ABT 1226 of S-Hertogenbosch, Noord-Brabant, Holland
Death:          1284 Valenciennes, Nord, France

Notes
heiress of the countship of Holland (France)
governed Holland ans Zealand, 1256-1263
https://en.wikipedia.org/wiki/Adelaide_of_Holland
Adelaide of Holland, Countess of Hainaut (Dutch: Aleide (Aleidis) van Holland; c.?
1230 – buried 9 April 1284) was a Dutch regent. She was a daughter of Floris IV, 
Count of Holland and Matilda of Brabant. She was also a sister of William II, Count of 
Holland and King of Germany. She acted as regent for her nephew Count Floris V 
during his minority.
Life[edit]

On 9 October 1246, Adelaide married John I of Avesnes, Count of Hainaut. Like her 
mother, she was a patron of religious houses. Her religious interest is reflected in that 
three of her sons became bishops, and her one daughter became an abbess. She also 
insisted on a bilingual education for them.

Between 1258 and 1263, Adelaide was regent of Holland in the name of her nephew 
Floris V. She called herself Guardian of Holland and Zeeland (Tutrix de Hollandie et 
Zeelandie). After he came of age, she continued to advise him. She died in 1284 at 
Valenciennes, but in 1299, with the death of Floris' son John I, it was her own son 
John II who inherited Holland through her.

She gave Town privileges to Schiedam, which afterwards had the right to be called a 
city. In it she founded Huis te Riviere, which was then the second largest castle in 
Holland.

Jacob van Maerlant dedicated his first poem, Geesten, to Adelaide.

Issue[edit]

With John I, she had the following issue:[1]
1.John II, Count of Hainaut and Holland (1247–1304)
2.Baldwin (born after 1247, lived in 1299)
3.Joanna, abbess of Flines (died 1304)
4.Bouchard, Bishop of Metz (1251–1296)
5.Guy, Bishop of Utrecht (1253–1317)
6.William, Bishop of Cambrai (1254–1296)
7.Floris, stadholder of Zeeland and Prince of Achaea (1255–1297)

Parents
____ Florenz (Floris) IV (24 Jun 1210 - 19 Jul 1234)
OF BRABANT Matilda (Mathilde) (ABT 1200 - 22 Dec 1267)

Siblings
OF HOLLAND Adelaide (Aleida) (Alhildis) (Aleide) (ABT 1226 - 1284)

Marriage To D'AVESNES Jean I (John I) (1 May 1218 - 24 Dec 1257)
    m. 9 Oct 1246 

Notes

Parents
D'AVESNES Bouchard (ABT 1182 - 1244)
____ Margaret (Marguerite) (2 Jun 1202 - 10 Feb 1280)

Children by D'AVESNES Jean I (John I) 1 May 1218 - 24 Dec 1257
D'AVESNES Jean II (John II) (ABT 1247 - 22 Aug 1304)

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