Franz Moritz von Lacy
| Franz Moritz von Lacy | |
|---|---|
| Count von Lacy | |
| Born | 21 October 1725 Saint Petersburg, Russian Empire | 
| Died | 24 November 1801 (aged 76) Vienna, Archduchy of Austria, Holy Roman Empire | 
| Buried | Neuwaldegg, Vienna | 
| Allegiance | Holy Roman Empire | 
| Service | Habsburg Empire | 
| Years of service | 1743–1790s | 
| Battles / wars | |
| Relations | Peter Graf von Lacy (father) | 
| Signature | |
Franz Moritz Graf von Lacy (English: Francis Maurice de Lacy; Irish: Proinsias Muiris de Lása; Russian: Борис Петрович Ласси, tr. Boris Petrovich Lassi; 21 October 1725 – 24 November 1801) was an Austrian military leader of Baltic German and Irish origins. He was the son of Count Peter von Lacy, and was a famous Austrian field marshal. Lacy 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. He was made a count of the Holy Roman Empire, while his father had been a count of the Russian Empire.