In 12 chapters, this volume documents the Imperial Assembly in Wiener Neustadt held in the spring of 1455 and attended by Holy Roman Emperor Frederick III. Including a total of ten extant speeches by Italian and Hungarian humanists (Enea Silvio Piccolominii, Giovanni di Castiglione, and János Vitéz), the assembly also constituted an oratorical peak of the late medieval imperial assemblies. Includes a combined index for volumes XIX/1, 2, and 3.