Spires (Speyer) is the seat of government, and the chief industrial centres are Ludwigshafen on the Rhine, which is the principal river port, Landau, and Neustadt, the seat of the wine trade.
Speyer, Die Frankfurter Revolution 1612-1616 (1883); and L.
See Probst, Geschichte der Stadt and Festung Germersheim (Speyer, 1898).
But from Spires (Speyer) town succeeds town as far down as Dsseldorf.
The diet of Speyer (1526) saw Germany divided into a Protestant and a Romanist party.
In the diet held at Speyer in 1529 a compact Roman Catholic majority faced a weak Lutheran minority.