The Viking art style named after a richly furnished grave at Mammen in Denmark is the Mammen style.
The style is generally dated to the late tenth century, especially around AD 970. Its name comes from decorated objects found in a chamber grave near Mammen in central Jutland. The most famous object is a small, decorated axe with intricate silver inlay.
Mammen designs combine ribbon-like animal forms, birds, plant motifs and elaborate spirals. They represent a transitional phase in Scandinavian art, blending earlier gripping-beast traditions with newer forms that developed into the Ringerike style.
The Mammen style is sometimes confused with Jelling style because both belong to the later Viking Age and are connected with Denmark. Jelling style is usually associated with the monumental art of the Jelling complex, while Mammen style is identified particularly by its distinctive animal-and-plant ornament.