Hungary declares itself independent of Austria with Lajos Kossuth as its leader.

The Hungarian Declaration of Independence declared the independence of Hungary from the Habsburg monarchy during the Hungarian Revolution of 1848. The declaration of Hungarian independence was made possible by the positive mood created by the military successes of the Spring Campaign. It was presented to the National Assembly in closed session on 13 April 1849 by Lajos Kossuth, and in open session the following day, despite political opposition from within the Hungarian Peace Party. The declaration was passed unanimously the following day.

The Austrian Empire, officially known as the Empire of Austria, was a multinational European great power from 1804 to 1867, created by proclamation out of the realms of the Habsburgs. During its existence, it was the third most populous monarchy in Europe after the Russian Empire and the United Kingdom, while geographically, it was the third-largest empire in Europe after the Russian Empire and the First French Empire.

Lajos Kossuth de Udvard et Kossuthfalva was a Hungarian nobleman, lawyer, journalist, politician, statesman and governor-president of the Kingdom of Hungary during the revolution of 1848–1849.

April 14 is the 104th day of the year in the Gregorian calendar; 261 days remain until the end of the year.