Uladislaus I

Uladislaus I,

king of Hungary: see Ladislaus IIILadislaus III,
1424–44, king of Poland (1434–44) and, as Uladislaus I, king of Hungary (1440–44), son of Ladislaus II. He led two crusades against the Ottomans; the first (1443) was highly successful, but the second ended with his defeat and death in the battle
..... Click the link for more information. , king of Poland.