Burg Schöneflieth, Medieval castle ruins near Ems River, Greven, Germany

Burg Schöneflieth is a medieval fortress site with two islands and visible foundations situated along the Ems River. A reconstructed bridge connects the islands and marks where the original moat once surrounded the defensive structure.

The fortress was founded in 1232 and served as a toll station along the Ems trade route. It remained an important control point for river commerce for several centuries until it fell into decline.

The name Schöneflieth comes from Franco von Schonebeck, also called Schöneflieth, who built the castle in 1232. The cathedral canons of Münster who owned it from 1365 held the bridge toll over the Ems, and a customs tower stood south of the bridgehead, probably built after the Thirty Years' War. The toll office survived until 1 October 1847, long after the castle itself had been quarried away.

The site can be reached easily via the EmsRadweg cycling path, which runs directly past the location. Parking is available near the local outdoor swimming pool, making it convenient to visit the ruins.

The castle's name comes from Franco von Schonebeck, also called Schöneflieth, who built it in 1232. The site is first documented in a 1257 charter as "Castellum dictum sconenvlete". The toll post outlived the castle itself, surviving until 1 October 1847, long after the last stones were sold in 1843.