Single location in the municipality of Erbach in the German Rheingau wine growing region. The name goes back to the 13th century and reminds of the fountain "Markenburne" on the boundary between Erbach and Hattenheim. In 1810, a curious border dispute arose between the two communities, which is still visible today. The municipality of Erbach had the following inscription carved in stone on its side of the fountain: Marcobrunn Gemeinde Erbach. The people of Hattenheim write on their side of the well as a reaction: This is how it is right, this is how it should be. For Erbach the water, for Hattenheim the wine. The name Marcobrunn was already a quality mark in the 18th century and was already mentioned on bottle labels in 1726.