Army leadership and staff for 20 March 1809 are listed below. The Austrian army at Aspern-Essling numbered 90,226 infantry, 12,918 cavalry, and 4,000–6,000 artillerymen. Note that the three cavalry units in gray were temporarily detached from their Armeekorps and assigned to the I Reserve Armeekorps. •
Generalissimus:
Archduke Charles, Duke of Teschen •
Adjutant generals: FML
Philipp Ferdinand von Grünne, GM Josef von Colloredo, OB
Maximilian von Wimpffen, OBL Maximilian Auersperg • Kommando: FML Josef von Stipsicz • Artillery: FML
Archduke Maximilian of Austria-Este • Pioneers: GM Josef Schwäger von Hohenbruck • Engineers: GM Philipp de Lopez ==French Army==