A Dutch court has sentenced three men to nearly four years in prison each for the armed robbery of a 2,500-year-old Romanian golden helmet and three gold bracelets from the Drents Museum in Assen, a city in the northern Netherlands. The court in Assen handed down sentences of 47 months to all three defendants, citing the "nature and gravity" of the offences and ruling that only a substantial custodial term would suffice.

The raid took place on 25 January 2024, when a gang used explosives to blow open an entrance to the museum, causing significant structural damage and endangering nearby residents. The thieves made off with the Coțofenești helmet — a near-pure gold artefact dating to around 450BC and considered one of Romania's most important national treasures — along with three gold bracelets. The objects had been on loan from Romania's national history museum as part of an exhibition on the ancient Dacian civilisation, the pre-Roman culture of present-day Romania. The theft sparked outrage in Bucharest, cost the former director of Romania's national history museum his job, and led to the Dutch government paying a reported €5.7 million in insurance compensation.

All three suspects — identified as Jan B., aged 21, Douglas Chesney W., aged 37, and Bernhard Z., aged 35 — were arrested within days of the heist, though the stolen items had already disappeared. Prosecutors reached a plea agreement with Jan B. and Douglas Chesney W., who cooperated in returning part of the loot in exchange for a reduced sentencing recommendation of 44 months. Bernhard Z. refused any deal and sought acquittal, but the court rejected his claim of innocence. Despite the differing levels of cooperation, the court imposed identical sentences on all three, explaining that it could not determine with certainty each individual's role in returning the stolen items. The two cooperating defendants actually received slightly more than the prosecution had requested, because one gold bracelet — estimated to be worth €500,000 — remains missing.

The helmet and two of the three bracelets were eventually recovered and returned to Romanian authorities in April 2025, more than a year after the theft. The helmet had sustained minor denting but was found to be restorable; the two recovered bracelets were undamaged. Romanian prosecutor Rareș-Petru Stan praised Dutch investigators' persistence and said the search for the missing bracelet is ongoing.

The case has renewed debate about security at Dutch regional museums, several of which have been targeted in recent years due to the challenges of protecting high-value loaned artefacts. Investigators noted that the thieves left a significant trail of evidence, allowing police to identify them relatively quickly — a pattern seen in other high-profile art thefts where perpetrators misjudge the complexity of selling or concealing stolen cultural property. The court underscored the limits of insurance as a measure of cultural loss, noting that objects of this historical significance are, in the truest sense, priceless.