XEE4407826 Battle of the Trento a Ploermel. On March 27, 1351, on the moor of Ploermel, two Breton camps dealt with their differences by fighting. Eight Englishmen were killed and the others surrendered. It is said that, in the fierce battle, the chief of the Bretons (Jean de Beaumanoir), exhausted with heat and fatigue, asked for a drink; one of his companions answered him, ???rink your blood, Beaumanoir, thirst will pass you.??by Unknown Artist, (20th century); Private Collection; (add.info.: Battle of the Trento a Ploermel. On March 27, 1351, on the moor of Ploermel, two Breton camps dealt with their differences by fighting. Eight Englishmen were killed and the others surrendered. It is said that, in the fierce battle, the chief of the Bretons (Jean de Beaumanoir), exhausted with heat and fatigue, asked for a drink; one of his companions answered him, ???rink your blood, Beaumanoir, thirst will pass you.??; Stefano Bianchetti.