12.5.1809 encounter of Duero/Oporto/Duoro

party1: British, Portuguese
commander1: Wellesley s.
troops1: 27000
losses1: x

party2: French
commander2: Soult s.
troops2: 18000
losses2: 600+1800
(Victory of French, Baiern or (perhaps) indecisive)