The Principality of Andorra was formally established in 1278 with the signing of a paréage (feudal charter) between the Count of Foix (representing the County of Urgell) and the Bishop of Urgell.
The agreement resolved a long-standing dispute over control of the Andorran valleys. The arrangement was confirmed and modified by subsequent treaties (notably 1607, 1866, 1993), but 1278 remains the foundational date.
Today, Andorra is a sovereign parliamentary democracy. The co-princes remain ceremonial heads of state; the Bishop of Urgell (currently Joan Enric Vives Sicília) and the President of France (currently Emmanuel Macron) serve as co-princes.