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.

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

On 30 November 2007 she arrived back at her home port of Zeebrugge, marking the end of the deployment.

[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.