Original: Advancing through the uplands of Etruria, Hannibal provoked Flaminius to a hasty pursuit and, catching him in a defile on the shore of Lake Trasimenus, destroyed his army in the waters or on the adjoining slopes while killing Flaminius as well (see Battle of Lake Trasimene).
Simplified: On the shore of Lake Trasimenus, Hannibal destroyed Flaminius's army in the waters or on the nearby slopes.