Origin of the Nigtevecht coat of arms
The original coat of arms Nigtevecht seems to go back to the 1600's, the origin of the blue-white format related to the place Nigtevecht is unknown. The coat of arms with blue-white "Nigtevecht" was later also used as a heart weapon on the coat of arms of the Huydecoper van Nigtevecht family. who themselves also used a variant with the fields reversed, white-blue.
A story goes that when two famlies joined via a marriage, they had both the same colors but opposite in the coat of arms This then caused an unresolved problem even into modern times. There was indeed an issue about the colours which was eventally settled as blue-white, but not referenced to a marriage. I found no record of a marriage in the Huydercoper Heer van Nigtevecht (the Lordship) or "Huydecoper van Nigtevecht" combining the two names. It is unclear how the name "Huydecoper van Nigtevecht" emerged as a full name. It was originally a Lordship title (in Dutch "Heerschap"). The title under the larger coat of arms means "The Liberties of Edw Huydecoper van Nigtevecht", rather than ""The Liberties of Edw Huydecoper Lord of Nigtevecht", but it could be the same. Personally I would not like to be related to the Huydecoper larger coat of arms, all these mystic symbols!!
Fact is that the "Huydecoper" family used the coat of arms with left side Blue and right side Yellow-top Black-bottom, the "Huydecoper van Nigtevecht" family. The family came into possession of the Lordship of Nigtevecht in 1721, which shows as blue-white. The dispute about the colours may indicate that the "Huydecoper" Weapon may have been involved in the disagreement if it should be blue-white or white-blue.
The coat of arms with the Crown was officially registered in 1950, and officially granted on August 14, 1976. After a fusion of municipalities this coat of arms was abandoned in 1986. The original coat of arms Nigtevecht may stillbe visible in village Nigtevecht on an old building, one which I once visited on a very hot summers day. And by the way, there is also an old fort called Nigtevecht which was built in 1903, as part of the Defense Line of Amsterdam. It's a tint village but with an interesting and important history.
