Murad II Kodja or Amurathes II (June 1404, Amasya – 3 February 1451, Edirne) (Ottoman Turkish: مراد ثانى Murād-ı sānī, Turkish:II. Murat) was the Sultan of the Ottoman Empire from 1421 to 1451 (except for a period from 1444 to 1446 when his son Mehmed II reigned).Murad II's reign was marked by the long war he fought against the Christian feudal lords of the Balkans and the Turkish emirates in Anatolia, a conflict that lasted 25 years.