The Dutch Royal Family sent Prince Willem-Alexander and Princess Máxima of the House of Orange to congratulate New York City as well as President and Mrs. Obama on 400 years of Dutch-American friendship.
Here's a link to the NY400 website.As my mother was born in Scheveningen, and came to New York as a refugee from Hitler, where she worked for the Dutch Ministry of Shipping (of the government-in-exile)I think it is very nice.
To all our Dutch readers: Gelukwensen!