On July 27, 1361, there was a battle outside the ring wall of Visby. An army from Gotland tried to defend their island. Their opponent was the Danish king Valdemar Atterdag with his experienced army. The Gotlanders suffered a severe defeat. The remains of the mass graves testify to the brutality of the battle. Most of the graves were excavated in the early 1900s. From 1361 until today, there have been various legends about the events. These have evolved over time. Modern history often portrays the Gotlanders as ill-equipped with old equipment and disorganized. The Danish army is given the opposite description, in positive terms. The question is whether this use of history is accurate? This project seeks to re-approach the sources of the events of 1361 through a combination of written and archaeological research. By using new scientific analysis methods, such as isotope analysis, new information can be obtained from the archaeological material. Analysis of those individuals where equipment can be linked to that particular individual provides vital information about their origins. This gives a new picture of the armies that met and a new picture of the historical event.