Looking back through the archives I didn't see this specific question addressed. If a person has dual citizenship, allowed by marriage of re. part., in the event of a divorce do they have to give up one of the two or can they keep both?

They can keep both. If you're married to/registered partner of a Dutch national at the time you apply for naturalization and at the time the decision is made on your naturalization, you will never be asked to give up your first nationality, even if you divorce or dissolve the partnership a week later. They only "denaturalize" people who promised to renounce their first citizenship at the time of naturalization and then don't do it within two years, or of whom it is discovered that they were naturalized on the basis of fraudulent information. And Wilders and Co. want to make denaturalization also possible for persons with a dual nationality who are convicted of serious crimes.

Jeremy Bierbach, LLM
www.immigrate.nl

Ahhh, that you very much!

Thanks for your answer Avocado it was really confusing otherwise.