[1] Initially, the area was governed by Peter Himfi, the Count of Pozsony, and then by Denis Lackfi, styled "voivode of Transylvania, governor of Vidin and ruler of the counties of Temes and Szolnok".

[2] After establishing their administrative rule, the Hungarians proceeded to convert the local Bulgarian Orthodox population to Roman Catholicism with the assistance of Franciscan friars.

[2] That religious intolerance was reflected in the negative popular attitude towards the Hungarian overlordship, attested in a marginal note in an Orthodox religious book from the period: "This book was written by the sinful and unintelligent Dragan together with his brother Rayko in the days when the Hungarians ruled Vidin and it was great pain for the people at that time.

For joining the alliance, Ivan Alexander offered the Byzantine emperor the Black Sea ports south of Nesebar (Messembria); in return, however, John V had to pay 180,000 florins to Vladislav I Vlaicu, voivode of Wallachia.

Although the initial campaign was not entirely successful because the Hungarians seized the city back, the ensuing negotiations between the Kingdom of Hungary and Ivan Alexander's allies, Vladislav I Vlaicu and Dobrotitsa, the despot of the semi-independent Dobrujan Principality of Karvuna, led to the return of the city to Bulgarian possession.