Alfonso II of Aragon was a medieval king who ruled from 1162 to 1196. He was the first king of Aragon to hold the title of king of Catalonia and played a significant role in the unification of the Crown of Aragon. His reign was marked by military campaigns to expand his territory and strengthen his kingdom. Alfonso II was also known for his support of the Catholic Church and his efforts to promote the Reconquista, the campaign to reclaim the Iberian Peninsula from Muslim rule. He was a patron of culture and law, contributing to the development of the Aragonese legal system.