https://alchetron.com/John-Sigismund%2C-Elector-of-Brandenburg
John Sigismund, Elector of Brandenburg - Alchetron, the free social encyclopedia
Feb 15, 2026 - John Sigismund (German Johann Sigismund 8 November 1572 23 December 1619) was a Princeelector of the Margraviate of Brandenburg from the House of Hohenzollern....
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