Fraeylemaborg
A Groningen manor with a long English park behind it, in the village at the centre of the gas field.
Updated 21 October 2026
Fraeylemaborg at Slochteren is one of the larger surviving Groningen borgen, a moated brick house of medieval origin given its present form in the sixteenth and seventeenth centuries with a symmetrical front and side wings, held by the Piccardt and later the Thomassen a Thuessink van der Hoop families and turned into a museum in 1972. The interiors are furnished by period with portraits, furniture and a collection on the House of Orange. Behind it runs an estate park of about twenty hectares, laid out first in the formal manner and then reworked in the English landscape style in the nineteenth century, with long avenues, water and old trees, and it is free to walk. The village around it is where the Groningen gas field was discovered in 1959 - the largest in Europe - and the subsidence and induced earthquakes from six decades of extraction have damaged buildings across this region, including historic ones.
What you'll find
- A moated borg - brick, given its present form in the 1500s and 1600s with a symmetrical front.
- Period interiors - furnished rooms with portraits and an Orange collection.
- A twenty-hectare park - formal avenues reworked in the English manner, free.
- The gas field village - Slochteren, where the field was found in 1959.
When to go
April to October. Half a day.
What to expect
Closed Mondays and reduced in winter. The house is modest in scale. Earthquake damage from gas extraction affects buildings across the region and repair work is common.
Nearby
Menkemaborg is north; Groningen city is west.
Key facts
Source: Wikidata, item Q374958, read on 18 October 2026.
What to pack for Fraeylemaborg
Chosen from what this place is for. Tap a kit for the full checklist.
- Comfortable walking shoes - Sightseeing means kilometres of pavement and cobbles daily. Find on Amazon
- A slim anti-theft daypack - Zips that close properly; keep it in front in crowds and on transit. Find on Amazon
- A refillable water bottle - Many cities have public fountains; save money and plastic. Find on Amazon
- A light layer + compact umbrella - For museum air-con and a sudden shower. Find on Amazon
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