Congress of Visegrád (1335)
From Wikipedia, the free encyclopedia
The first Congress of Visegrád was a 1335 summit in Visegrád in which Casimir III of Poland, Charles I of Hungary, and John I of Bohemia formed an anti-Habsburg alliance. John gave up his claims to the Polish throne in exchange for 120,000 Prague groschen and the recognition of his suzerainty over Silesia.