What is Mary 1 famous for?

Mary I of England, often referred to as "Bloody Mary," is famous for her attempt to restore Roman Catholicism in England after the Protestant Reformation initiated by her father, Henry VIII. Her reign from 1553 to 1558 was marked by the persecution of Protestants, leading to the execution of many dissenters. This brutal campaign to reinstate Catholicism earned her the nickname "Bloody Mary." Her reign was ultimately short-lived, ending with her death, after which her half-sister Elizabeth I established Protestantism firmly in England.