Final answer:
Cardinal Mazarin played a significant role in ending the Fronde through his diplomatic skills and negotiations.
Step-by-step explanation:
The Fronde was a series of civil wars in France during the mid-17th century. Cardinal Mazarin, who served as the chief minister to the young king Louis XIV, played a significant role in the ending of the Fronde. While Mazarin was initially a target of the rebel factions, he skillfully navigated the political landscape and was able to negotiate peace treaties and consolidate royal authority.
One of the key events that marked the end of the Fronde was the Peace of Rueil in 1649, which was negotiated by Mazarin. This peace treaty helped to bring the various factions together and paved the way for the eventual restoration of royal power. Mazarin's diplomatic skills and his ability to navigate the complex political situation were instrumental in bringing an end to the Fronde.