Around 14 BCE there was, near the present village, on the hill later called Lorenzberg, directly on the Lech, a Roman road station (castra) with about 80 soldiers and riders.

These had the task of securing the intersection of the Via Claudia with the old salt road, which came from Salzburg, and here crossed the Lech, then on to Kempten.

But between 260 and 270, the site of Lorenzberg was re-populated, but this time with an enclosure wall built out of fear of Germanic raids.

The former coat of arms shows a Roman oil lamp together with the golden Christogram.

Today, the town lies on the long-distance cycling route, which runs along the Via Claudia Augusta.