Do the Dutch still have a monarchy?
Monarchy of the Netherlands
In particular, members of the royal house other than the monarch and the heir-apparent have no official tasks within the Dutch government and do not receive stipends. They are responsible for their own conduct and their own income. They may be asked to stand in from time to time such as to accompany the monarch on a state visit if the consort is ill, but this is always a personal favor and not an official duty. In addition, they are not exempt from taxation.
Dynasty
A "dynastic marriage" is one that complies with monarchical house law restrictions, so that the descendants are eligible to inherit the throne or other royal privileges. The marriage of King Willem-Alexander of the Netherlands to Queen Máxima Zorreguieta in 2002 was dynastic, for example, and their eldest child Princess Catharina-Amalia is expected to inherit the Crown of the Netherlands eventually. However, the marriage of his younger brother Prince Friso of Orange-Nassau to Princess Mabel of Orange-Nassau in 2003 lacked governmental support and parliamentary approval. Thus, Prince Friso forfeited his place in the order of succession to the Dutch throne, lost his title as a "Prince of the Netherlands", and left his children without dynastic rights.