Waldemar of the HRE (Chaos)

Waldemar "Cicero" V of Brandenburg, of the Ascanian dynasty, was born in 1560 as the son of Margrave Waldemar (nicknamed "Plutarch") IV and his wife. He became margrave quite early, at the age of eighteen years.
For his capability, he was elected Roman king in 1612 and became emperor-elect in 1619 as well.
In 1640, he joined the Baltic League with Sweden, Prussia and Franconia-Pomerania, for the fear that king was getting too much influence in the HRE.
He died in 1648 and was succeeded by his son Heinrich IV, who would govern the country as able as he did, and also opposed François IV. The latter was successful however in that he had his relative Charles / elected next Roman king.