Map - Luxembourg (Grand Duchy of Luxembourg)

Flag of Luxembourg

Luxembourg (Lëtzebuerg ; Luxembourg; Luxemburg), officially the Grand Duchy of Luxembourg, is a small landlocked country in Western Europe. It borders Belgium to the west and north, Germany to the east, and France to the south. Its capital and most populous city, Luxembourg, is one of the four institutional seats of the European Union (together with Brussels, Frankfurt, and Strasbourg) and the seat of several EU institutions, notably the Court of Justice of the European Union, the highest judicial authority. Luxembourg's culture, people, and languages are highly intertwined with its French and German neighbors; while Luxembourgish is legally the only national language of the Luxembourgish people, French and German are also used in administrative and judicial matters and all three are considered administrative languages of the country.

With an area of 2,586 km2, Luxembourg is one of the smallest countries in Europe, and the smallest not considered a microstate. In 2022, it had a population of 645,397, which makes it one of the least-populated countries in Europe, albeit with the highest population growth rate; foreigners account for nearly half the population. Luxembourg is a representative democracy headed by a constitutional monarch, Grand Duke Henri, making it the world's only remaining sovereign grand duchy.

Luxembourg is a developed country with an advanced economy and one of the world's highest GDP (PPP) per capita. The city of Luxembourg was declared a UNESCO World Heritage Site in 1994 due to the exceptional preservation of its vast fortifications and historic quarters.

Luxembourg is a founding member of the European Union, OECD, the United Nations, NATO, and the Benelux. It served on the United Nations Security Council for the first time in 2013 and 2014. As of 2022, Luxembourg citizens had visa-free or visa-on-arrival access to 189 countries and territories, ranking the Luxembourgish passport fourth in the world, tied with Finland and Italy.

The history of Luxembourg is considered to begin in the year 963, when Count Siegfried acquired a rocky promontory and its Roman-era fortifications, known as Lucilinburhuc, "little castle", and the surrounding area from the Imperial Abbey of St. Maximin in nearby Trier. Siegfried's descendants increased their territory through marriage, conquest, and vassalage. By the end of the 13th century, the counts of Luxembourg reigned over a considerable territory. In 1308, Count of Luxembourg Henry VII became King of the Romans and later Holy Roman Emperor; the House of Luxembourg would produce four Holy Roman Emperors during the High Middle Ages. In 1354, Charles IV elevated the county to the Duchy of Luxembourg. The duchy eventually became part of the Burgundian Circle and then one of the Seventeen Provinces of the Habsburg Netherlands. Over the centuries, the City and Fortress of Luxembourg—of great strategic importance due to its location between the Kingdom of France and the Habsburg territories—was gradually built up to be one of the most reputed fortifications in Europe. After belonging to both the France of Louis XIV and the Austria of Maria Theresa, Luxembourg became part of the First French Republic and Empire under Napoleon.

The present-day state of Luxembourg first emerged at the Congress of Vienna in 1815. The Grand Duchy, with its powerful fortress, became an independent state under the personal possession of William I of the Netherlands with a Prussian garrison to guard the city against another invasion from France. In 1839, following the turmoil of the Belgian Revolution, the purely French-speaking part of Luxembourg was ceded to Belgium and the Luxembourgish-speaking part (except the Arelerland, the area around Arlon) became what is the present state of Luxembourg.