The Battle of Rozgony or Battle of Rozhanovce was fought between King Charles Robert of Hungary and the family of Palatine Amade Aba on 15 June 1312, on the Rozgony field. Chronicon Pictum described it as the "most cruel battle since the Mongol invasion of Europe". Despite many casualties on the King's side, his decisive victory brought an end to the Aba family's rule over the eastern Kingdom of Hungary, weakened his major domestic opponent Máté Csák III, and ultimately secured power for Charles Robert of Hungary.

Charles I, also known as Charles Robert, was King of Hungary and Croatia from 1308 to his death. He was a member of the Capetian House of Anjou and the only son of Charles Martel, Prince of Salerno. His father was the eldest son of Charles II of Naples and Mary of Hungary. Mary laid claim to Hungary after her brother, Ladislaus IV of Hungary, died in 1290, but the Hungarian prelates and lords elected her cousin, Andrew III, king. Instead of abandoning her claim to Hungary, she transferred it to her son, Charles Martel, and after his death in 1295, to her grandson, Charles. On the other hand, her husband, Charles II of Naples, made their third son, Robert, heir to the Kingdom of Naples, thus disinheriting Charles.