Many mysteries surround Marengo the mythical white stallion of Napoleon Bonaparte. Did he really exist or was he just a mirage created by the Emperor’s predilection for the “oriental” horse? Did the British really capture the old stud after the defeat at Waterloo? And why is he not recorded in the French studbooks listings of Napoléon’s horses? Napoleon’s legend tells us that his favorite white charger was named Marengo after the famous victory in Italy. This means that he was known after a different name before the battle of Marengo, and perhaps that name could be found in the French Studbooks. Interestingly, one of the horses described in the first ever published French Studbook (1838), fits the known description of Marengo perfectly. This stallion is called Seidiman (Sédiman in French). Seidiman was a light grey horse, born in 1794 or 1793. He was not taken during the battle of Aboukir as the myth says. Several other stallions were indeed…but this is another story for a later time. Rather he was shipped to France from Hungary by a M. de La Barthe (a royalist of this era) and likely confiscated for the benefit of the new Emperor after his coup d’état. For several years indeed he was one of the Emperor’s favorite war horse. Seidiman was without a doubt at the battle…