Latgalians

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Part of a series on the
History of Latvia
Ancient Latvia Kunda culture Narva culture Corded Ware culture Amber Road / Aesti Baltic Finns (Livonians, Vends) Balts Latgalians Curonians Selonians Semigallians
Middle Ages Principality of Jersika Principality of Koknese Tālava Livonian Crusade Livonian Brothers of the Sword Livonian Order Archbishopric of Riga Bishopric of Courland Terra Mariana Baltic Germans
Early modern period Livonian War Kingdom of Livonia Duchy of Livonia Inflanty Voivodeship Swedish Livonia Polish–Swedish Wars (1600–1629) Second Northern War Great Northern War Duchy of Courland and Semigallia Couronian colonization
National Awakening Governorate of Livonia Courland Governorate Vitebsk Governorate The First Latvian National Awakening New Current
Modern Latvia Latvian Riflemen German occupation United Baltic Duchy Latvian Socialist Soviet Republic War of Independence 1934 Latvian coup d'état 1940 Soviet occupation Nazi occupation The Holocaust in Latvia 1944 Soviet re-occupation Latvian Soviet Socialist Republic Popular Front of Latvia Singing Revolution Restoration of Independence 2008 Latvian financial crisis
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Latgalians (Latin: Lethi, Letthigalli, Low German: Letti, Lethi, modern Latvian: latgaļi, letgaļi, leti; variant translations also include Latgallians, Lettigalls or Lettigallians) were an ancient Baltic tribe.

They likely spoke a variant of Latvian language, which probably became the lingua franca in present-day Latvia during the Northern Crusades due to their alliance with the crusaders. Latgalians later assimilated into the neighbouring tribes, forming the core of modern Latvians.