Franz Moritz von Lacy, Austrian field marshal (d. 1801)
Franz Moritz Graf von Lacy (English: Francis Maurice de Lacy; Russian: Борис Петрович Ласси, tr. Boris Petrovich Lassi; 21 October 1725 – 24 November 1801) was a Baltic German-born Austrian military leader, he was the son of Count Peter von Lacy and was a famous Austrian field marshal. He served during the reign of Maria Theresa and was a close friend to Joseph II, Holy Roman Emperor, becoming one of the latter's advisers. Lacy was made a Count of the Holy Roman Empire.