<Tr> <Th> Today part of </Th> <Td> Various countries (show) <Ul> <Li> Algeria </Li> <Li> Andorra </Li> <Li> Austria </Li> <Li> Belgium </Li> <Li> Bosnia and Herzegovina </Li> <Li> Croatia </Li> <Li> Czech Republic </Li> <Li> France </Li> <Li> Germany </Li> <Li> Gibraltar </Li> <Li> Guernsey </Li> <Li> Hungary </Li> <Li> Italy </Li> <Li> Jersey </Li> <Li> Liechtenstein </Li> <Li> Libya </Li> <Li> Luxembourg </Li> <Li> Malta </Li> <Li> Monaco </Li> <Li> Morocco </Li> <Li> Netherlands </Li> <Li> Poland </Li> <Li> Portugal </Li> <Li> Romania </Li> <Li> San Marino </Li> <Li> Serbia </Li> <Li> Slovakia </Li> <Li> Slovenia </Li> <Li> Spain </Li> <Li> Switzerland </Li> <Li> Tunisia </Li> <Li> United Kingdom </Li> <Li> Vatican City </Li> </Ul> </Td> </Tr> <Ul> <Li> Algeria </Li> <Li> Andorra </Li> <Li> Austria </Li> <Li> Belgium </Li> <Li> Bosnia and Herzegovina </Li> <Li> Croatia </Li> <Li> Czech Republic </Li> <Li> France </Li> <Li> Germany </Li> <Li> Gibraltar </Li> <Li> Guernsey </Li> <Li> Hungary </Li> <Li> Italy </Li> <Li> Jersey </Li> <Li> Liechtenstein </Li> <Li> Libya </Li> <Li> Luxembourg </Li> <Li> Malta </Li> <Li> Monaco </Li> <Li> Morocco </Li> <Li> Netherlands </Li> <Li> Poland </Li> <Li> Portugal </Li> <Li> Romania </Li> <Li> San Marino </Li> <Li> Serbia </Li> <Li> Slovakia </Li> <Li> Slovenia </Li> <Li> Spain </Li> <Li> Switzerland </Li> <Li> Tunisia </Li> <Li> United Kingdom </Li> <Li> Vatican City </Li> </Ul> <Li> Bosnia and Herzegovina </Li> <Tr> <Td_colspan="2"> <Ol> <Li> ^ Since the Western Roman Empire was not a distinct state separate from the Eastern Roman Empire, there was no particular official term that designated the Western provinces or their government, which was simply known at the time as the "Roman Empire". Terms such as Imperium Romanum Occidentalis and Hesperium Imperium were either never in official usage or invented by later medieval or modern historians long after the Western Roman court had fallen . In the ancient era the Latin term often used was "S.P.Q.R." ("Senatus Populusque Romanus" ("Senate and People of Rome") Latin) used in documents, on flags and banners and carved / engraved on buildings </Li> <Li> ^ Whilst the deposition of Emperor Romulus Augustulus in 476 is the most commonly cited end date for the Western Roman Empire, the last Western Roman Emperor Julius Nepos, was assassinated in 480, when the title and notion of a separate Western Empire were abolished . Another suggested end date is the reorganization of the Italian peninsula and abolition of separate Western Roman administrative institutions under Emperor Justinian during the latter half of the 6th century . </Li> </Ol> </Td> </Tr>

How far east west north and south did the roman empire exist at its most powerful