This is another curious history related to de "Huydecoper van Nigtevecht " family about a forgotten war, a page on ( vlagblog.nl -Scilly Isles )mentions the following.
In 1986, a symbolic peace treaty between the Isles of Scilly and the Netherlands was signed by Dutch ambassador Jonkheer Rein Huydecoper van Nigtevecht (signed without the old title). This event ended a 335-year conflict, formally declaring peace centuries after the last Anglo-Dutch War had concluded, though a formal peace had apparently been overlooked. There are many interesting articles about this was on britishonlinearchives.com about the "350 years treaty of westminster signed ending the third anglo dutch war" (1672–1674), and www.historic-uk.com.
"...While their hereditary title of Jonkheer (equivalent to Lord/Esquire) remains active within the official Dutch nobility, modern family members (such as the diplomat Jhr. Jan Louis Reinier Huydecoper van Nigtevecht in the late 20th century) deliberately chose not to use their titles in public or official diplomatic capacities..." (Google AI). They are still "Huydecoper van Nigtevecht" but no longer use this as such.
The war on Scilly Islands which started a bit later, was only signed as a peace treaty in 1986!
There is an explanation on the ( vlagblog.nl -Scilly Isles )website how they discovered the forgotten war in 1986 "Roy Duncan, historian and chairman of the Isles of Scilly Council, wrote to the Dutch embassy in London to dispel the myth that the archipelago was still at war with the Netherlands. The embassy investigated and concluded that the myth was indeed based on truth (Whitelocke's letter)."
The 335-year war ended with zero casualties, a unique achievement. The absence of any deaths may also explain why it was forgotten in a corner of Britain. There was no formal declaration of war, and the peace went unnoticed. England was in turmoil during the Cromwell period and had other priorities. I think "The Long Boring Forgotten Anglo-Dutch War" would be a more appropriate title!
