François I was the King of France from 1515 to 1547. He is known for his role in the Renaissance, promoting arts and culture in France. François I invited artists like Leonardo da Vinci to his court, which helped to enhance the cultural landscape of the country. He was also a significant political figure, engaging in wars against Charles V, the Holy Roman Emperor. François I's reign saw the expansion of French territory and the establishment of French as the official language of the kingdom, marking a shift in national identity and governance.