Frederick I of Brandenburg Hohenzollern ^{1 2 3}

  General Notes:

Frederick (German: Friedrich) I (1371-1440), Burgrave of Nuremberg, was created margrave of Brandenburg by Sigismund, Holy Roman Emperor in 1415, inaugurating 400 years of rule over the area by the Hohenzollern family which was ultimately to preside over Germany's political unification.

Frederick's sons included John III the Alchemist, regent during Frederick's absence supporting Sigismund in Bohemia's Hussite Wars; his successor Frederick II; and Albert Achilles.

  Noted events in his life were:

• He was a Burgrave of Nuremberg. ... as Frederick VI.

• Acceded: Elector of Brandenburg, 1415.

Frederick married Elizabeth of Bavaria-Landshut, daughter of Frederick of Bavaria-Landshut and Magdalan Visconti, on 18 Sep 1401. (Elizabeth of Bavaria-Landshut was born in 1383 and died on 13 Nov 1442.)