King Albert died of dysentery on 27 October 1439. His widow, ElisabethEmperor Sigismund's daughtergave birth to a posthumus son, Ladislaus. The Estates of the realm offered the crown to Vladislaus, King of Poland, but Elizabeth had his infant son crowned king on 15 May 1440. However, Vladislaus accepted the Estates' offer and was also crowned king on 17 July. During the ensuing civil war between the two kings' partisans, Hunyadi supported Vladislaus. Hunyadi fought against the Ottomans in Wallachia, for which King Vladislaus granted him five domains in the vicinity of his family estates on 9 August 1440.