Complex sentence: Originally it was the familiar emblem of the Counts of Barcelona and was adopted by his descendents as Kings of Aragon, the main branch, Counts of Provence, Counts of Foix Léon Jéquier.
Split into simpler sentences: Originally it was the familiar emblem of the Counts of Barcelona. The familiar emblem was adopted by his descendents as Kings of Aragon, the main branch, Counts of Provence, Counts of Foix Léon Jéquier.