A discourse of the empire of Germany and of the election and crowning the emperours and kings of the Romans: : as also of the Colledge of Electors, their particular interests and concernments: with reasons why the present Emperour was lately chosen. Being an abstract of the Roman Empire both east and west: as also of the Aurea bulla or great imperial charter, and how the Roman eagles flew over the Alps to Germany, and nested there now neer one thousand years