Leopold I (F930) is a Karel Doorman-class frigate of the Marine Component of the Belgian Armed Forces.

She was the third ship in the Royal Netherlands Navy to be named after Admiral Karel Doorman, who was killed during the Battle of the Java Sea.

On 22 December 2005, Karel Doorman and Willem van der Zaan were sold to Belgium.

Willem van der Zaan was commissioned into the Belgian Marine Component as Louise-Marie in April 2008.

[3][4][5] As a precaution, the ship broke off from its operation with the French carrier battle group led by Charles de Gaulle and returned to Zeebrugge on 27 March 2020, about a month earlier than planned.