Catherine de' Medici was an Italian Florentine noblewoman of the Medici family and Queen of France from 1547 to 1559 by marriage to King Henry II. She was the mother of French kings Francis II, Charles IX, and Henry III, and a cousin to Pope Clement VII. The years during which her sons reigned have been called "the age of Catherine de' Medici" since she had extensive, albeit at times varying, influence on the political life of France.
Catherine was born in Florence to Lorenzo de' Medici, Duke of Urbino, and his wife, Madeleine de La Tour d'Auvergne. In 1533, at the age of 14, Catherine married Henry, the second son of King Francis I and Queen Claude of France, who would become Dauphin of France (heir to the throne) upon the death of his elder brother Francis in 1536.