Beatrice of Bar

Beatrice of Bar (1310–1350) was a French noblewoman of the house of Montbéliard, the third child of Count Edward I of Bar and Mary of Burgundy. She married Guido Gonzaga as his third wife. Guido (1290–1369) was a condottiero of the Gonzaga family that ruled Mantua.

In 1360, at seventy, he became second capitano del popolo. Beatrice died in 1350, ten years before he took that office; their son Ludovico II took over Mantua's government after Guido's death in 1369.