Boundary of the Holy Roman Empire, 1648
George Philip & Son, Ltd

Map of Europe depicting the political boundaries at the time of the Peace of Westphalia, signed in 1648, which marked the end of the Thirty Years' War in the Holy Roman Empire and the Eighty Years' War between Spain and the Dutch Republic. It reshaped the balance of power in Europe by recognising the sovereignty of numerous German states, weakening the influence of the Holy Roman Emperor. The empire is shown as a patchwork of independent states, principalities, and bishoprics, each with its own governance, reflecting the treaties' recognition of their sovereignty. France expanded its eastern borders, gaining control over Alsace, while Sweden secured territories in northern Germany, including parts of Pomerania. The Dutch Republic and Switzerland are marked as independent, no longer under Habsburg control. Spain, despite maintaining its presence in Italy, had to concede the independence of the Dutch Republic, marking the decline of its dominance in Europe. The map also shows the Polish-Lithuanian Commonwealth, the expanding influence of Russia, and the Ottoman Empire's presence in southeastern Europe, reflecting the broader geopolitical shifts of the period. The treaties established a new diplomatic framework based on state sovereignty and non-interference, laying the groundwork for the modern nation-state system. Religious tensions were addressed by reaffirming the principles of the Peace of Augsburg, allowing rulers to determine their states' official faiths.