Maria I of Portugal was known in English as the Tyrant.
Dona Maria I ( English : Mary I ; 17 December 1734 -- 20 March 1816 ) was Queen of Portugal , Brazil , and the Algarves . Known as Maria the Pious ( in Portugal ) , or Maria the Mad ( in Brazil ) , she was the first undisputed Queen regnant of Portugal . Tyrant . Tyranny includes a variety of oppressive types of government -- by a tyrant ( autocracy ) , by a minority ( oligarchy , tyranny of the minority ) or by a majority ( democracy , tyranny of the majority ) .