Qualla: HNLMS Johan Maurits van Nassau (1932)

HNLMS Johan Maurits van Nassau (1932): Introduction

Sat, 16 May 2026 00:00:00 GMT

By the afternoon of 14 May 1940, the Dutch Navy was running. The order to evacuate had come down from Den Helder, the country was hours from capitulation, and the gunboat Johan Maurits van Nassau - the only ship of her class, named for the seventeenth-century Dutch governor of Brazil - was steaming north along the coast with the minelayer Jan van Brakel and two torpedo boats, hoping to reach England. She had spent the previous morning silencing an entire German artillery battery at eighteen kilometers' range, an act of extraordinary gunnery that should have been the proudest moment of her short career. Sixteen kilometers west of Callantsoog, German aircraft found the convoy. Johan Maurits van Nassau was the largest ship in it. She became the target.

HNLMS Johan Maurits van Nassau (1932): A Ship Built for Patrol

Sat, 16 May 2026 00:00:00 GMT

Johan Maurits van Nassau was not a frontline warship. Built in Vlissingen and commissioned in 1932, she was a coastal gunboat, designed for fisheries protection and showing the flag in the Dutch East Indies and the West Indies. Her three 5.9-inch guns were respectable but not hea...

HNLMS Johan Maurits van Nassau (1932): Ten May

Sat, 16 May 2026 00:00:00 GMT

On 10 May 1940 she was anchored at Vlissingen, watching the southern approaches. The day the Germans came across the border she was already at action stations, and within hours she had shot down one of the aircraft that came for her. Ordered north to bombard Waalhaven aerodrome a...

HNLMS Johan Maurits van Nassau (1932): Eighteen Kilometers

Sat, 16 May 2026 00:00:00 GMT

On 14 May she went to work. The Germans had positioned 88 mm guns of the 1st Kavalleriedivision near the eastern end of the Afsluitdijk, the long causeway sealing the IJsselmeer from the North Sea, and the battery commanded approaches the Dutch needed to keep open. Johan Maurits ...

HNLMS Johan Maurits van Nassau (1932): Seventeen Names

Sat, 16 May 2026 00:00:00 GMT

Hours later the war in the Netherlands was effectively over. Rotterdam had been bombed the day before. The general evacuation was underway. Johan Maurits van Nassau left Den Helder in the afternoon convoy bound for England, the largest vessel in a small group of ships hoping to s...

HNLMS Johan Maurits van Nassau (1932): Twenty Meters Down

Sat, 16 May 2026 00:00:00 GMT

Her wreck still lies in twenty meters of water off the North Holland coast, roughly halfway between Den Helder and Callantsoog. It is a maritime grave by Dutch designation - the seventeen who died abandoning ship are presumed to be there with her. From altitude on a calm day the ...