Johanniter-Doppelkommende Hasselt

The Johanniter-Doppelkommende Hasselt stands in the flat Moormerland of south-eastern East Frisia, once an island of higher ground in the bogs. Founded by the Knights of St John, it first appears in 1319 under the name Harsle in the Groninger Vergleich. Earlier still, in the 10th century, the place had been called Harsalae, a Frisian word for ‘horse-wood’ or ‘wood with small hills’. The site is worth the journey because it was one of the order’s few double houses, where both brothers and sisters lived together. In 1540 an Ordensschwester is recorded at Hasselt, the only surviving proof of that arrangement. After the Reformation Count Enno II seized all Johanniter houses in East Frisia in 1528 and demolished church and convent in 1558 for building stone. The order later won back the estate in 1574, but nothing now rises above ground. Visitors find an open field where the buildings once stood. No walls or foundations remain above soil level, yet the flat landscape still shows the old summer route from Leer to Uplengen and the medieval military road from Hesel to Filsum. A single boundary stone marks the vanished Vorwerk in nearby Nortmoor, linking the lost estate to the surrounding moors.