The Battle of Gransee was fought in August 1316 between the armies of a North German-Danish alliance led by the Duchy of Mecklenburg, and those of the Margraviate of Brandenburg and their allies.
The immediate cause of conflict was a dispute over succession to the Lordship of Stargard following the death in 1314 of Beatrix of Brandenburg, wife of Henry II, Lord of Mecklenburg (nicknamed "The Lion").
Waldemar, Margrave of Brandenburg-Stendal (nicknamed "The Great"), demanded the return of what he considered a fief of Brandenburg, which Beatrix had possessed only as part of her dowry (German: de:Leibgedinge).
Henry countered by calling for military assistance from his allies – who included King Erik of Denmark, John of Werle, and other North German princes – and by invading Brandenburg.
[Note 3] Henry caught an axe blow to the helmet in the initial phase of the battle, and had to be supported from the field; but later returned to fight with undiminished vigour.
It consists of a plaque which includes a panorama of the battlefield, and historical information by Carsten Dräger, local historian, and by Frank Saß, head of the Stargarden Castle museum.