Matthias Corvinus
At the state convention of Benešov in 1472, Henry was elected as the provincial administrator on the recommendation of his mother, who also took part. Unlike his mother, however, he sided with the Hungarian king, Matthias Corvinus. The reason for this was probably that Vladislas repaid his debts only slowly, while Matthias Corvinus did so without hesitation. In 1475, Henry sold the Lordship of Kolín, which he had received from his older brother Victor, for ducats to Matthias Corvinus, who stationed his Hungarian occupation troops there. After Henry appointed the Corvinus supported and despot Racek Kocovský as the administrator of Konopiště, Vladislas's supporters aligned with those of Matthias Corvinus. In 1478 it came to a reconciliation between Henry and Vladislas under the Treaty of Brno.