King Afonso I of León, also known as Afonso VI, ruled from 1065 to 1109. He was a significant figure in the history of the Kingdom of León and played a crucial role in the Reconquista, the effort to reclaim the Iberian Peninsula from Muslim rule. Afonso's reign was marked by territorial expansion and the consolidation of power among the Christian kingdoms. Afonso I was known for his military campaigns and alliances, which helped strengthen the Christian presence in the region. He was also a patron of the arts and culture, promoting the development of Romanesque architecture and supporting the Cluniac reform movement within the church. His legacy continues to influence the history of Spain and Portugal.