Sándor Petőfi was a Hungarian poet and liberal revolutionary of mostly ethnic Slovak origin, He is considered Hungary's national poet, and was one of the key figures of the Hungarian Revolution of 1848. He is the author of the Nemzeti dal, which is said to have inspired the revolution in the Kingdom of Hungary that grew into a war for independence from the Austrian Empire. It is most likely that he died in the Battle of Segesvár, one of the last battles of the war.