blood.'" As one of the preachers of the 1553 Lenten sermons, he also warned of the dangers of secret Catholics in political offices.
When Mary Tudor (later known as Bloody Mary) acceded to the throne, Knox fled to the Continent. He met with Calvin in Geneva, Bullinger in Zurich and other Swiss leaders, posing questions on rebellion against idolatrous monarchs and female sovereigns. It was these encounters that helped him solidify his own theological beliefs.
