Roger of Wendover, an English chronicler, had a negative opinion of King John, often criticizing and portraying him as a tyrannical, unrighteous ruler. Wendover's "Flores Historiarum" offers numerous instances of John's misrule, including his conflicts with the English barons, the Church, and his excessive taxation. Wendover believed that John's actions ultimately led to the signing of the Magna Carta in 1215, which served as a check on royal power and protected the rights of the English subjects.