Waterkasteel was a defense in the colony coming under the administration of the Dutch government in what year?
Waterkasteel (Batavia): Waterkasteel (Dutch "Water Fortress") was the northernmost defense of Batavia (now Jakarta), Dutch East Indies. Dutch East Indies:  It was formed from the nationalised colonies of the Dutch East India Company, which came under the administration of the Dutch government in 1800.
1800