sentences:  His powerless reign and lack of legitimate heirs of his own saw his family's elimination from the line of succession after the parliamentary government dominated by pro-revanchist Hat Party politicians ventured into a war with Russia, which ended in defeat and the Russian tsarina Elizabeth getting Adolph Frederick of Holstein-Gottorp instated following the death of the king.He was the son of Charles I, Landgrave of Hesse-Kassel, and Princess Maria Amalia of Courland.In 1692 the young prince made his Grand Tour to the Dutch Republic, in 1695 to the Italian Peninsula and later he studied in Geneva.