alexander i of russia bagrationovsk battle of austerlitz battle of eylau battle of golymin battle of heilsberg battle of jena-auerstedt battle of saalfeld battle of schleiz bydgoszcz central europe continental system cuirassier dalmatia dmitriy vladimirovich golitsyn dragoon elbe finland first french empire frankenwald friedrich wilhelm von buxhoeveden geographic coordinate system great britain hanover horace vernet ionian islands jean lannes joachim murat johann philipp palm kaliningrad oblast kalisz kilometre kingdom of prussia kingdom of westphalia lestoq louis antoine fauvelet de bourrienne michel ney mile napoleon i of france oder river olsztyn ottoman empire pravdinsk prussia rhine russian empire russians treaties of tilsit vistula river war of the fourth coalition war of the third coalition warsaw