July 12, 1444 Murad signed a treaty that officially gave Wallachia and the Bulgarian province of Varna to Hungary, western Bulgaria (including Sofia) to Serbia and forced Murad to abdicate in favor of his twelve-year-old son Mehmed.
Tanggal 12 Juli 1444 Murad menandatangani traktat yang secara sah mengalihkan kekuasaan atas Wallachia dan propinsi Varna kepada Hongaria, Bulgaria barat (termasuk Sofia kepada Serbia dan memaksa Murad mengundurkan diri digantikan puteranya yang berumur dua belas tahun Mehmed II.