"The following is a list of all leaders recognized as Holy Roman Emperors by the Christian Church, starting with the first Holy Roman Emperor, Charlemagne. It is incomplete as of 10 October 2013."@en . . . . . . . "Holy Roman Emperors (Magnam Europae)"@en . . "The following is a list of all leaders recognized as Holy Roman Emperors by the Christian Church, starting with the first Holy Roman Emperor, Charlemagne. It is incomplete as of 10 October 2013."@en . .