Before 1359–1360, the former heir to the Bulgarian crown Ivan Sratsimir had established himself as the ruler of the Vidin appanage of the Second Bulgarian Empire and had turned it into a largely independent entity.
Sebelum tahun 1359–1360, mantan penerus Kekaisaran Bulgaria, Ivan Sratsimir, telah menjadi penguasa wilayah Vidin di Kekaisaran Bulgaria Kedua dan menjadikannya sebuah entitas yang semi-independen.