Battle of Castricum

An Anglo-Russian force of 32,000 men landed in North Holland on August 27, 1799, captured the Dutch fleet at Den Helder on August 30 and the city of Alkmaar on October 3. Following a series of battles at Bergen on September 19 and Alkmaar on October 2 (also known as 2nd Bergen), they faced the French and Dutch armies at Castricum on October 6.

The town of Castricum passed from Batavian-French to British-Russian hands repeatedly several times until the latter finally fled, losing 2536 men and 11 guns; the Batavian-French losses stood at 1382. The defeat persuaded the Duke that his position was untenable. After a chaotic retreat, the parties signed the Convention of Alkmaar on October 10.

The British and Russians were allowed to withdraw, without paying reparations, and retaining captured bounty. As a sign of gratitude for enabling him honourably to emerge from the inglorious Dutch imbroglio, Brune received a number of horses from the Duke. By 19 November all the British and Russian troops had been embarked and the expedition was over. In the years following the 1799 invasion, defensive lines were constructed in Holland to protect Amsterdam from future invasions from the north.

In the Huis met de Kogel (House with the Cannonball) in Castricum, a cannonball that got stuck in the wall during the battle can still be seen. A plaque beneath the cannonball commemorates the battle.[1] Various locality names in Castricum also provide a reminder of the battle, like the Russenbergen dunes and the Doodelaan street. The Russisch Monument in Bergen marks the fighting there. The French victory was also commemorated on the Arc de Triomphe in Paris as "Alkmaer".

• Anglo-Russian invasion of North Holland (1799)
• Noord-Holland 1799 (in Dutch)
• De Engels-Russische inval (in Dutch)