 According to a third group of historians, who base their theory on the note of Doukas that Bulgarian delegates attended the Bursa negotiations between Mehmed I and Manuel II Palaiologos in 1413, the uprising was crushed as late as 1418 alongside several other unrelated rebellions.After the end of the uprising, its leaders Konstantin and Fruzhin once again settled abroad, Konstantin in Serbia and Fruzhin in Hungary.Konstantin died in 1422 in Serbia, while Fruzhin continued to work actively in Hungary to restore the Bulgarian Empire.