County of Barcelona

State · 898–1168 CE · at its largest around 1152 CE

The leading Catalan county, made hereditary under Wilfred the Hairy. Its union with Aragon in the 12th century formed the Crown of Aragon.

On its lands while it lasted

Andorra la Vella (900 CE): Capital of Principality of Andorra (1815–today).
Benabarre (c. 900 CE): Capital of County of Ribagorza (900–1084).
Roda de Isábena (c. 900 CE): Capital of County of Ribagorza (900–1084).
Besalú (c. 988 CE): Capital of County of Besalú (988–989).
Vic (c. 990 CE): Capital of County of Osona (990–1110).
Sant Martí d'Empúries (c. 1000 CE): Capital of County of Ampuria (1000–1078).
Tortosa (c. 1010 CE): Capital of Taifa of Tortosa (1010–1099).
Tremp (c. 1040 CE): Capital of County of Pallars Jussà (1040–1191).
Castelló d'Empúries (c. 1078 CE): Capital of County of Ampuria (1078–1402).