Did the Roman Empire have anything to do with the Crusades in 1090?

* That request resulted in The Crusades. * Although the Western Roman Empire ended in 476, The Holy Roman Empire participants in the Crusades such as France, Germany & Austria as well other European countries such as Spain, England and others were originally parts of the Western Roman Empire. * The Byzantine Empire lasted until 1453, when it finally fell to the Ottoman Turks.