Tyrol is a historical region in the Alps of Northern Italy and western Austria. The area was historically the core of the County of Tyrol, part of the Holy Roman Empire, Austrian Empire and Austria-Hungary, from its formation in the 12th century until 1919. In 1919, following World War I and the dissolution of Austria-Hungary, it was divided into two modern administrative parts through the Treaty of Saint-Germain-en-Laye:State of Tyrol: Formed through the merger of North and East Tyrol, as part of Austria Region of Trentino-Alto Adige: At that time still with Souramont and the municipalities Valvestino, Magasa, and Pedemonte, seized in 1918 by the Kingdom of Italy, and thus since 1946 part of the Italian Republic.

The (Princely) County of Tyrol was an estate of the Holy Roman Empire established about 1140. After 1253, it was ruled by the House of Gorizia and from 1363 by the House of Habsburg. In 1804, the County of Tyrol, unified with the secularised prince-bishoprics of Trent and Brixen, became a crown land of the Austrian Empire. From 1867, it was a Cisleithanian crown land of Austria-Hungary.