Jacob van Heemskerck) was a unique coastal defence ship[a] of the Royal Netherlands Navy built by the Rijkswerf in Amsterdam.

During World War II she was captured by the invading German forces and converted in an anti-aircraft battery.

The ship was equipped with 2 shaft reciprocating engines, which were rated at 6,400 ihp (4,800 kW) and produced a top speed of 16.5 knots (30.6 km/h).

[2] On 16 May 1910 the ship left the port of IJmuiden to steam for Sheerness to bring Prince Henry of the Netherlands to the funeral of Edward VII of the United Kingdom of Great Britain and Ireland that was held on 20 May.

[3] On 24 July the ship left the port Den Helder for the coronation fleet review of King George V at Spithead on 27 June.

[5] After her active career she was rebuilt into a stationary battery ship and renamed Batterijschip IJmuiden and recommissioned on 19 April 1939.