Marca Hispanica in the context of "Treaty of Corbeil (1258)"

The Paladins, also called the Twelve Peers (French: Douze Pairs), are twelve legendary knights, the foremost members of Charlemagne's court in the 8th century. They first appear in the medieval (12th century) chanson de geste cycle of the Matter of France, where they play a similar role to the Knights of the Round Table in Arthurian romance. In these romantic portrayals, the chivalric paladins represent Christianity against a Saracen (Muslim) invasion of Europe. The names of the paladins vary between sources, but there are always twelve of them (a number with Christian associations) led by Roland (spelled Orlando in later Italian sources). The paladins' most influential appearance is in The Song of Roland, written between 1050 and 1115, which narrates the heroic death of Roland at the Battle of Roncevaux Pass.

The legend is based on the historical Umayyad invasion of Gaul and subsequent conflict in the Marca Hispanica between the Frankish Empire and the Emirate of Córdoba. The term paladin is from Old French, deriving from the Latin comes palatinus (count palatine), a title given to close retainers.

The County of Osona, also Ausona (Catalan: Comtat d'Osona, IPA: [kumˈtad duˈzonə]; Latin: Comitatus Ausonae), was one of the Catalan counties of the Marca Hispanica in the Early and High Middle Ages. It was based around the capital city of Vic (Vicus) and the corresponding diocese, whose territory was roughly the current comarca of Osona.

The ancient diocese of Osona was sacked by the Arabs in the mid eighth century (c. 750–755). Its reconquest by Christian powers began in 798; in that year Louis of Aquitaine ordered Borrell, a Goth, to enter the abandoned region and repair the castles of Vic, Cardona, and Casserès. Vic was in Frankish hands by 799. After the successful siege of Barcelona in 801, Borrell, already Count of Cerdanya and Urgell, received Osona as a countship from his liege lord, King Louis. On Borrell's death, Osona was granted to Rampon, Count of Barcelona. After the rebellion of 826, during which Guillemó and Aissó succeeded in taking it with help from the Emirate of Córdoba, Osona remained depopulated and outside of Frankish control until 879. It was considered to be part of the County of Barcelona throughout that period.

The County of Pallars or Pallás (Catalan: Comtat de Pallars, IPA: [kumˈtad də pəˈʎas]; Latin: Comitatus Pallariensis) was a de facto independent petty state, nominally within the Carolingian Empire and then West Francia during the ninth and tenth centuries, perhaps one of the Catalan counties, originally part of the Marca Hispanica in the ninth century. It was coterminous with the upper Noguera Pallaresa valley from the crest of the Pyrenees to the village of Tremp, comprising the Vall d'Àneu, Vall de Cardós, Vall Ferrera, the right bank of the Noguera Ribagorçana, and the valley of the Flamicell. It roughly corresponded with the historic region of Catalonia called Pallars. Its chief city was Sort.

The County of Roussillon (Catalan: Comtat de Rosselló, IPA: [kumˈtad də rusəˈʎo], Latin: Comitatus Ruscinonensis) was one of the Catalan counties in the Marca Hispanica during the Middle Ages. The rulers of the county were the counts of Roussillon, whose interests lay both north and south of the Pyrenees.

The historic county's lands today lie within the borders of France.

The County of Cerdanya (Catalan: Comtat de Cerdanya, IPA: [kumˈtad də səɾˈðaɲə]; Latin: Comitatus Ceritaniae; Spanish: Condado de Cerdaña, French: Comté de Cerdagne) was one of the Catalan counties formed in the last decades of the 8th century by the Franks in the Marca Hispanica. The original Cerdanya consisted of the valley of the upper Segre. Today Cerdanya is a Catalan comarca.

The County of Conflent or Confluent (Latin: Confluensis) was one of the Catalan counties of the Marca Hispanica in the ninth century. Usually associated with the County of Cerdanya and the county of Razès, it was located to the west of Roussillon. It largely corresponded to the modern comarca of Conflent.