Overview
King of the Netherlands (Dutch: Koning der Nederlanden) is the title of the Dutch head of state, which includes the constituent nations of the Netherlands, Curaçao, Aruba, and Sint Maarten. The king is also the president of the Council of State.
Furthermore, the king is the head of the Royal House, which consists of a few direct relatives. Membership is specified by law. This is to be distinguished from the much larger Royal Family with all the relatives.
Originally, the Dutch monarch acted as an absolute ruler. However, during the 19th century, the monarch's power was severely restricted. In theory, the Dutch monarch has many powers, but in practice, serves a ceremonial role.
Terminology, title, and lineage
From Wikipedia (CC BY-SA 4.0).