Letter of the Emperor Leopold I to King James II - Plea for cooperation with the English monarch because of pressure from the Turks on one side and the French on the other. - http://www.jacobite.ca/documents/16890409a.htm
Leopold I - Biography noting his patronage of music and his own compositional abilities from the Grove Concise Dictionary of Music entry at WQXR radio. - http://www.wqxr.com/cgi-bin/iowa/cla/learning/grove.html?record=5322
Leopold I, Holy Roman Emperor - Biographical information noting the political and military struggles during his rule and commenting upon his cultural impact. From the Columbia Encyclopedia at Project Barltleby. - http://www.bartleby.com/65/le/Leopo1HRE.html