Robert Nisbet Bain, 1911 Encyclopædia Britannica, Volume 17… (1911)
“ Matters grew even worse on the death of Bakócz, when the magnates István Báthory, János Zapolya and István Verböczy fought each other furiously, and used the diets as their tools. Added to these troubles was the ever-present Turkish peril, which became acute after the king, with insensate levity, arrested the Ottoman envoy Berham in 1521 and refused to unite with Suleiman in a league against the Habsburgs. ”
