Frederick II is the eldest of the…

Frederick II is the eldest of the seven children of Frederick I, Elector of Saxony, and Catherine of Brunswick and Lunenburg.

After the death of his father in 1428, he had taken over the government together with his younger brothers William III, Henry and Sigismund.

In 1433 the Wettins had finally concluded peace with the Hussites.

In 1438, in what is considered the first federal state parliament of Saxony, the parliament receives the right to find together in case of innovations in fiscal matters, also without summoning by the ruler.

After Henry's death in 1435, and after Sigismund is forced in 1440 to renounce his claim and become a bishop, Frederick and William divide their possessions.

In the Division of Altenburg in 1445, William III had received the Thuringian and Frankish part, and Frederick got the eastern part of the principality.

The mines remain common possessions.

Disputes over the distribution had led, however, in 1446 to the Saxon Fratricidal War, which finds an end only on January 27, 1451, with the peace of Naumburg.

In the Treaty of Eger in 1459, elector Frederick, Duke William III and the king of Bohemia George of Podebrady will fix the borders between Bohemia and Saxony, at the height of the Ore Mountains and the middle of the Elbe.

The border, which still holds today, belongs therefore to the oldest extant borders of Europe.