Ada of Holland

Ada
Margravine consort of Brandenburg
Born	c. 1163
Died	1205
Father	Floris III, Count of Holland
Mother	Ada of Huntingdon

Ada of Holland (c. 1163–1205) was the daughter of Floris III, Count of Holland and his wife Ada of Huntingdon. She was the sister of Dirk VII, Count of Holland and William I, Count of Holland.

In 1176 she married Otto I of Brandenburg, becoming Margravine of Brandenburg until his death in 1184. This was Otto's second marriage. He had been married to Judith of Poland. Otto already had two sons from his marriage to Judith, Otto (who later succeeded his father as Margrave of Brandenburg) in 1149, and Henry (who inherited the Counties of Tangermünde and Gardelegen) in 1150.

Ada and Otto had a son named Albert II who would in time succeeded his half-brother Otto II as Margrave of Brandenburg in 1205.

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