Complex sentence: Suspecting no evil, Hunyadi accompanied the king to Buda, but on arriving there was arrested on a charge of plotting against king, condemned to death without the observance of any legal formalities, and beheaded on the 16 March 1457.
Split into simpler sentences: Suspecting no evil, Hunyadi accompanied the king to Buda. But on arriving there he was arrested on a charge of plotting against the king, condemned to death without the observance of any legal formalities, and beheaded on the 16 March 1457.