Kortenaer) was a Evertsen-class coastal defence ship of the Royal Netherlands Navy.

The ship was equipped with 2 shaft reciprocating engines, which were rated at 4,700 ihp (3,500 kW) and produced a top speed of 16 knots (30 km/h).

The main armament of the ship was three 8.2 in (21 cm) guns in a double and single turret.

[4] On 30 May 1913 the ship relieved the Gelderland in Constantinople which was sent to the city on 11 November 1912 because of risen political tension and a direct war treat.

[5] 12 April 1914 the ship was sent from Curaçao to the Mexican coast to protect the complex of the Dutch petrol company La Corona in Tampico when political tension had risen between Mexico and the USA.