The title Ultimus Romanorum ("Last of the Romans") has been attributed to various men in history who were seen to exemplify the greatest characteristics and values of Roman culture, and whose deaths were seen to be also the death of those traits. Most of the figures bearing the name died in the period of the late Roman Empire and the early Middle Ages. Flavius Stilicho, Flavius Aetius, and Flavius Belisarius were all called Ultimus Romanorum for their tactical prowess as military generals, whereas Boethius and Pope Gregory I became known as Ultimus Romanorum for their theological and philosophical works. Justinian I bore the name for his administrative skills and as the last Emperor of the Eastern Roman Empire to speak Latin natively, but Romulus Augustus and Julius Nepos gained the title by their claims to being the final Emperor of the Western Roman Empire. As can be seen from these few examples, there was no clear definition of what made a man Ultimus Romanorum, and, indeed, many different men were awarded the title for many different reasons--there was no official declaration, simply by popular or individual acclamation. It is ironic, however, that the first man to call someone Ultimus Romanorum was Julius Caesar, who used the term to refer to Marcus Junius Brutus as the final embodiment of the spirit of Rome--Brutus would later become the most famous of Caesar's assassins.