Answer:
Queen Elizabeth I
Explanation:
One of the highlights of his reign was that of the transformation of England, a predominantly Catholic country, into a Protestant country. Maria, Isabel's sister, had restored Catholicism during her time of government, to such an extent that the queen did not find any important bishop to officiate her coronation and had to resort to the Bishop of Carlisle.
Already in 1559, Isabel, supreme governor of the Anglican church, proclaimed the Act of Uniformity, which forced to use a revised version of the Devotional of Edward VI - a Protestant book - in the offices and go to church every Sunday, and the Act of Supremacy that forced the employees of the crown to recognize by oath the subordination of the English church to the monarchy. Most of the Catholic bishops established by Mary refused to accept these changes, being deposed and replaced by people favorable to the queen's thesis.
Isabel tried during her first years a policy of tolerance towards Catholics; however, the rebellions of 1569 and 1571 and the papal bull of excommunication of 1570 led her to tighten the measures against Catholics. Between 1584 and 1585 a law was passed that condemned to death those Catholic priests who had been ordained after the queen's rise in 1559. Due in part to the persecution, partly to the identification of Protestantism and patriotism during the war against Spain and the aging (and subsequent death) of Catholic priests, the country had effectively become Protestant by the time the queen died in 1603.