Page "Adolf, King of Germany" Paragraph 24

A little later Adolf intervened in war-torn Thuringia, where fighting had erupted between Landgrave Albert the Degenerate and his sons Frederick and Dietrich IV of Lusatia.

He bought the Landgraviate from Albert in his capacity as king and probably using the payments from England.

Legally, it was perfectly acceptable for Adolf to induce the feudal lord to abandon his fief and to bring the land under the empire.

Furthermore, he seized the Margraviate of Meissen as an imperial fief, since it had been literally ownerless after the extinction of a collateral line of the House of Wettin and had been occupied by a son of Albert the Degenerate.