

Para las convenciones de nomenclatura, consulte Reinos medievales de Europa Occidental.
The Kingdom of León was an independent kingdom situated in the northwest region of the Iberian Peninsula. It was founded in 910 AD when the Christian princes of Asturias along the northern coast of the peninsula shifted their main seat from Oviedo to the city of León. The County of Portugal separated to become the independent Kingdom of Portugal in 1139 and the eastern, inland part of León was joined to the Kingdom of Castile in 1230.
From 1296 to 1301, the Kingdom of León was again independent and after the reunion with Castile remained a kingdom until 1833, latterly as part of a united Spain. By the R.D. of 30 November 1833, the Kingdom of León was considered one of the Spanish regions and divided into the provinces of León, Zamora and Salamanca. In 1978, León was included with six provinces from Old Castile in the Autonomous Community of Castile and León.
Ver: Reinos medievales de Europa Occidental