Luxembourg (/ˈlʌksəmbɜːrɡ/ ⓘ LUK-səm-burg;[9] Luxembourgish: Lëtzebuerg [ˈlətsəbuəɕ] ⓘ; German: Luxemburg [ˈlʊksm̩bʊʁk] ⓘ; French: Luxembourg [lyksɑ̃buʁ] ⓘ), officially the Grand Duchy of Luxembourg,[a] is a small landlocked country in Western Europe. It is bordered by Belgium to the west and north, Germany to the east, and France to the south. Its capital and most populous city, Luxembourg City,[10] 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.[11][12] Luxembourg's culture, people, and languages are greatly influenced by its much larger neighbors France and Germany; for example, Luxembourgish, a Germanic language, is the only national language of the Luxembourgish people and of the Grand Duchy of Luxembourg