High Quality Content by WIKIPEDIA articles! Johann Peter Beaulieu de Marconnay, also Jean Pierre Beaulieu de Marconnay, born 26 October 1725 – died 22 December 1819, was an Austrian military officer. He joined the Austrian army and fought against the Prussians during the Seven Years War. A cultured man, he later battled Belgian rebels and earned promotion to general officer. During the French Revolutionary Wars he fought against the First French Republic and attained high command. In 1796, a young Napoleon Bonaparte won some of his first victories against an army led by Beaulieu. He retired and was the Proprietor (Inhaber) of an Austrian infantry regiment until his death.