 Charles-Armand de Gontaut, duc de Biron

Charles Armand de Gontaut, duc de Biron (5 August 1663 — 23 July 1756), great-grandson of Armand de Gontout-Biron, was a French military leader who served with distinction under Louis XIV and Louis XV, and was made a Marshal of France by the latter.He commanded the French vanguard at the Battle of Oudenaarde (1708), and noticed the first manoeuvre of deviation by Marlborough.