The now-extinct title of Count of Barcelona was, through much of its history, merged with that of King of Aragon; see also List of Aragonese Monarchs.
Counts of Barcelona nominated by the (Frankish) Carolingian monarchs, to whom they were feudatories:
- Berà (801-820)
- Rampó (820-826)
- Bernat de Septimània, first reign (826-832)
- Berenguer de Tolosa (832-835)
- Bernat de Septimània, second reign (836-844)
- Sunifred I (844-848)
- Guillem (848-850)
- Aleran and Isembart (850-852)
- Odalric (852-858)
- Humfrid (858-864)
- Bernat de Gòtia (865-878)
- Guifré I el Pelós ("Wilfred the Hairy") (878-897)
- Sunifred I and his son Wilfred the Hairy claimed the title Marquès (marquess) of the Spanish March.
- Although in this period the title of Count was not hereditary, Bernat de Septimània was father of Guillem, and Sunifred I was father of Guifré I "the Hairy".
- Borrell II (948-92)
- Ramon Borell (992-1018)
- Berenguer Ramon I el Corbat (1018-35)
- Ramon Berenguer I el Vell ("the Old") (1035-76)
- Ramon Berenguer II el Cap d’Estopes ("the towhead") (1076-82)
- Berenguer Ramon II el Fratricida ("the Fratricide") (1076-97) -> co-reigned with Ramon Berenguer II and Ramon Berenguer III
- Ramon Berenguer III el Gran ("the Great") (1082-1131)
- Ramon Berenguer IV el Sant (1131-54) -> married Peronella of Aragon, which established the dynastic union with Aragon
- Alfons I (II of Aragon) el Cast or el Trobador (1154-96)
- Pere I (II of Aragon) el Catòlic ("the Catholic") (1196-1213)
- Jaume I el Conqueridor ("the Conqueror") (1213-76), also king of de Mallorca (See List of kings of Mallorca)
- Pere II (I of Valencia, III of Aragon) el Gran ("the Great") (1276-85),
- Alfons II (III of Aragon) el Franc ("the French") or el Liberal ("the Liberal")(1285-91)
- Jaume II el Just ("the Just") (1291-1327)
- Alfons III (II of Valencia, IV of Aragon) el Benigne ("the Good") (1327-36)
- Pere III (II de Valencia, IV of Aragon) el Cerimoniós ("the Ceremonious") or el del Punyalet (1336-87)
- Joan I el Caçador ("the Hunter"), el Descurat ("the Careless"), or l’Amador de la Gentilesa (1387-96)
- Martí I l'Humà ("the Human") or l'Eclesiàstic ("the Priest") (1396-1410) -> last descendant of Wilfred the Hairy to rule; died without legitimate heirs, occasion of the Compromise of Casp; interregnum 1410 - 1412
- Ferran I el d'Antequera ("of Antequera")(1412-16)
- Alfons IV (III de Valencia, V of Aragon) el Magnànim ("the Magnanimous") (1416-58)
- Joan II (1458-79) -> title disputed much of that time in the War Against Joan II (1462-72)
- Ferran II el Catòlic ("the Catholic") (1479-1516), a.k.a. Ferdinand V of Spain, invaded Navarre (married Isabella I of Castile)
- Joana I la Boja ("the Mad") (1516-55) -> succeeded by Charles I of Spain, a.k.a. Carles I, Count of Barcelona
- Henry IV of Castile (1462-63)
- Peter IV of Portugal el Conestable (1463-66)
- Renato I of Naples (1466-72)
Counts of Barcelona and Kings of Aragon and Valencia of the Habsburg dynasty (or House of Austria):
- Carles I (Charles I of Spain; Charles V, Holy Roman Emperor) (1555-56)
- Felip I (Philip II of Spain) (1556-98)
- Felip II (Philip III of Spain) (1598-1621)
- Felip III (Philip IV of Spain) (1621-41)
- Carles II (1665-1700) -> died without heirs
- Carles III (1705-14)-> the Catalan-Aragonese confederation was occupied and annexed by Spain: after this time, there are no more Catalan monarchs.