Denis Vasilyevich Davydov (Russian: Дени́с Васи́льевич Давы́дов, pronounced [dʲɪˈnʲis vɐˈsʲilʲjɪvʲɪdʑ dɐˈvɨdəf] ; 27 July [O.S. 16 July] 1784 – 4 May [O.S. 22 April] 1839) was a Russian soldier-poet of the Napoleonic Wars who invented the genre of hussar poetry, characterised by hedonism and bravado. He used events from his own life to illustrate such poetry. He suggested and successfully pioneered guerrilla warfare in the Patriotic War of 1812 against Napoleon.