In 1625, Denmark ventured into the Thirty Years' War. The Danish Intervention saw the war entering its second main phase, after the end of the Bohemian Revolt. With King Christian IV commanding on the battlefield, Prince Christian was installed as acting head of government. Christian held this post to 1627, but not without entering the battlefield in the meantime. He was even hit by two gunshots in November 1626. In 1627 he was sent to Holstein near the frontier, where he took seat in Segeberg. He later retreated when enemy troops overran South Denmark and Jutland, as the Danish Intervention failed. During this process he even broke a leg after a fall from a wagon. In 1626, his relationship with the noble Anne Lykke caused a conflict with his father and the Council of the Realm when his father arrested Lykke because of her influence on him and tried to have her charged with sorcery. In 1628, Christian received the fief of Malmøhus. In January 1632, he was appointed Governor-General of the Danish parts of Schleswig and Holstein. He also received Laaland and Falster. In 1633, Christian was engaged to Magdalene Sibylle, daughter of Elector John George I of Saxony; the marriage had been discussed as early as 1630. The wedding took place on 5 October 1634 in Copenhagen among great festivities. The marriage was childless, and they resided at Nykøbing Castle in Falster. Christian was not much involved on the political scene in this phase of his life, partly to his own dismay, but he did act as head of government in 1644, when the King was absent due to the Torstenson War. In the autumn of 1644, Prince Christian had a stay in the fortified Malmø, but Swedish forces threatened the city, and Christian retreated, first to Copenhagen due to illness, then to Falster.
Later life and legacy
Christian gained a reputation as lazy and as a drinker. He was heavily indebted; despite his father's attempts to pay some of Christian's debts, he still owed more than 215,000 rigsdaler in 1647. Among others, he took a loan from the Duke of Gottorp in 1646 in order to finance a stay in a Bohemian spa. He left Nykøbing for Bohemia on 8 May 1647. He reached Dresden on 28 May, and continued on 1 June. Not long after leaving he was struck by a fit of illness. He was brought to a castle in Gorbitz near Dresden, where he died on the next day. He was buried on 8 November 1647 in the Church of Our Lady in Copenhagen. In 1655, his remains were moved to the tombs at Roskilde Cathedral.
