Elector was a high German prince who was entitled to vote in the elections of new King-Emperors of the Holy Roman (German) Empire from about 1257 to 1806. Originally seven in number, and never more than nine, they also formed the top college of the three-college Imperial Diet or Reichstag, the other two consisting of (1) lesser lay and spiritual princes, and (2) representatives of the towns.
- Percy L. Greaves, Jr. "Mises Made Easier ", 1974. Referenced 2014-07-10.
- Prince-elector at Wikipedia