Hunyadi family
It is true that Janos Hunyadi and his son Matthias Corvinus Hunyadi, King of Hungary and anti-king of Bohemia, called themselves "Corvinus" and had their coins minted displaying a “raven with a ring”. The epithet "Corvinus" was coined by Matthias' biographer, the Italian Antonio Bonfini, who claimed that the Hunyadi family descended from Marcus Valerius Corvinus.