Albrecht von Wallenstein and King Christian IV of Denmark signed the Treaty of Lübeck to end Danish intervention in the Thirty Years' War.

Albrecht Wenzel Eusebius von Wallenstein, Duke of Friedland, also von Waldstein, was a Bohemian military leader and statesman who fought on the Catholic side during the Thirty Years' War (1618–1648). His successful martial career made him one of the richest and most influential men in the Holy Roman Empire by the time of his death. Wallenstein became the supreme commander of the armies of Holy Roman Emperor Ferdinand II and was a major figure of the Thirty Years' War.

Christian IV was King of Denmark and Norway and Duke of Holstein and Schleswig from 1588 until his death in 1648. His reign of 59 years and 330 days is the longest in Scandinavian history.

The Treaty or Peace of Lübeck ended the Danish intervention in the Thirty Years' War. It was signed in Lübeck on 22 May 1629 by Albrecht von Wallenstein and Christian IV of Denmark-Norway, and on 7 June by Ferdinand II, Holy Roman Emperor. The Catholic League was formally included as a party. It restored to Denmark–Norway its pre-war territory at the cost of final disengagement from imperial affairs.

The Thirty Years' War, fought primarily in Central Europe between 1618 and 1648, was one of the most destructive conflicts in European history. An estimated 4.5 to 8 million soldiers and civilians died from battle, famine, or disease, while parts of Germany reported population declines of over 50%. Related conflicts include the Eighty Years' War, the War of the Mantuan Succession, the Franco-Spanish War, the Torstenson War, the Dutch-Portuguese War, and the Portuguese Restoration War.