This ruler reorganized the army based on the ideas of Maurice of Nassau.
Among this ruler's internal improvements was the creation of the University of Tartu. This ruler reorganized the army based on the ideas of Maurice of Nassau. Early in this ruler's reign, this ruler ceded future reparations for the port of Alvsborg as collateral, while, in another treaty, this ruler annexed Ingria and Kexholm. Axel Oxenstierna advised this ruler to enter a war where this ruler was victorious at Burgstall and Pomerania. Killing Tilly during his crossing of the Lech, this ruler also was victorious at Breitenfeld. For 10 points, name this Swedish ruler who was known as "The Lion of the North."
Among this ruler's internal improvements was the creation of the University of Tartu.
Gustavus {Adolphus} [or Gustavus {II}]