 Complete the following phrase:  Sándor Petőfi  ; né Petrovics; ; ; 1 January 1823  most likely 31 July 1849 was a Hungarian poet and liberal revolutionary. He is considered Hungarys national poet, and was one of the key figures of the Hungarian Revolution of 1848. He is the author of the Nemzeti dal National Song, 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 