Wassenaar (Dutch pronunciation: [ˈʋɑsənaːr] ⓘ; population: 26,949 in 2021) is a municipality and town located in the province of South Holland, on the western coast of the Netherlands.

[5][6] By tradition, the 12th-century Romanesque church in Wassenaar is the spot where the Northumbrian missionary Willibrord landed in the Netherlands; the high dunes to the west were not formed until later.

It only began to gain prominence in the 19th century when Louis Bonaparte ordered the construction of the Heerweg ("Army Road") between The Hague and Leiden, which forms the current Rijksstraatweg.

In approximately 1840, Prince Frederik had the De Paauw (Peacock) palace built, where he lived for many years; it now serves as the city hall of Wassenaar.

This groundbreaking agreement helped in restraining wage growth in return for the adoption of policies to combat unemployment and inflation.

The Wassenaar Arrangement, a post Cold War era arms control convention, was signed here by forty member nations in May 1996.

In 2018 the Konijnen laan had an average house price of around 2.5 million Euros, making it the most expensive street in the Netherlands.

[6] The Dutch artists Ross and Iba released a song entitled 'Wassenaar,' which poked fun at the wealth of the town.